Ecology

"A humbling blow to our arrogant outlook, ecology reveals that humans – who conceive of themselves as the most autonomous and exalted forms of life – are entirely dependent upon the natural world, biodiversity, and in particular, the crucial role nonhuman animals play in maintaining and enriching nature. Indeed, earthworms, dung beetles, butterflies, and bees are far more important to the integrity and diversity of nature than humans are – the latter being the only species one could remove from earth ecosystems with positive effect. From an ecological perspective, humans are an overpopulated, parasitic swarm, living in total ignorance of natural "laws" they foolishly think they can master, but in truth must conform to and harmonize with if they intend to survive."

"If we recognise that every ecosystem can also be viewed as a food web, we can think of it as a circular, interlacing nexus of plant animal relationships (rather than a stratified pyramid with man at the apex)... Each species, be it a form of bacteria or deer, is knitted together in a network of interdependence, however indirect the links may be."

"If we have been slow to develop the general concepts of ecology and conservation, we have been even more tardy in recognizing the facts of the ecology and conservation of man himself. We may hope that this will be the next major phase in the development of biology. Here and there awareness is growing that man, far from being the overlord of all creation, is himself part of nature, subject to the same cosmic forces that control all other life. Man's future welfare and probably even his survival depend upon his learning to live in harmony, rather than in combat, with these forces."

"Man has been endowed with reason, with the power to create, so that he can add to what he's been given. But up to now he hasn't been a creator, only a destroyer. Forests keep disappearing, rivers dry up, wild life's become extinct, the climate's ruined and the land grows poorer and uglier every day."

"We need to renegotiate our contract with nature. Ecology is a unifying force that can diminish intolerance and expand our empathy towards others—both human and animal."

"The study of public administration must include its ecology. "Ecology," states the Webster Dictionary, "is the mutual relations, collectively, between organisms and their environment." J. W. Bews points out that "the word itself is derived from the Greek oikos a house or home, the same root word as occurs in economy and economics. Economics is a subject with which ecology has much in common, but ecology is much wider. It deals with all the inter-relationships of living organisms and their environment." Some social scientists have been returning to the use of the term, chiefly employed by the biologist and botanist, especially under the stimulus of studies of anthropologists, sociologists, and pioneers who defy easy classification, such as the late Sir in Britain."

"The disruption of the world's ecological systems — from the rise of global warming and the consequent damage to our climate balance, to the loss of living species and the depletion of ocean fisheries and forest habitats — continues at a frightening rate. Practically every day, it becomes clearer to us that must act now to protect our Earth, while preserving and creating jobs for our people."

"The extinction of Partula is unfair to Partula. That is the conventional argument, and I do not challenge its primacy. But we need a humanistic ecology as well, both for the practical reason that people will always touch people more than snails do or can, and for the moral reason that humans are legitimately the measure of all ethical questions—for these are our issues, not nature's."

"All life is impermanent. We are all children of the Earth, and, at some time, she will take us back to herself again. We are continually arising from Mother Earth, being nurtured by her, and then returning to her. Like us, plants are born, live for a period of time, and then return to the Earth. When they decompose, they fertilize our gardens. Living vegetables and decomposing vegetables are part of the same reality. Without one, the other cannot be. After six months, compost becomes fresh vegetables again. Plants and the Earth rely on each other. Whether the Earth is fresh, beautiful, and green, or arid and parched depends on the plants. It also depends on us."

"Our way of walking on the Earth has a great influence on animals and plants. We have killed so many animals and plants and destroyed their environments. Many are now extinct. In turn, our environment is now harming us. We are like sleepwalkers, not knowing what we are doing or where we are heading. Whether we can wake up or not depends on whether we can walk mindfully on our Mother Earth. The future of all life, including our own, depends on our mindful steps."

"The thing the ecologically illiterate don't realize about an ecosystem is that it's a system. A system! A system maintains a certain fluid stability that can be destroyed by a misstep in just one niche. A system has order, a flowing from point to point. If something dams the flow, order collapses. The untrained miss the collapse until too late. That's why the highest function of ecology is the understanding of consequences."

"Ecology is a dirty seven-letter word to many people. They are like heavy sleepers refusing to be aroused. "Leave me alone! It's not time to get up yet!""

"I will clarify a distinction that I consider fundamental to political ecology. I shall distinguish the environment as commons from the environment as resource. On our ability to make this particular distinction depends not only the construction of a sound theoretical ecology, but also — and more importantly — effective ecological jurisprudence."

"That land is a community is the basic concept of ecology, but that land is to be loved and respected is an extension of ethics."

"Humans are not the only organisms to have affected the live-ability [sic] of Earth. Microbes and plants changed the chemistry of the atmosphere long before we leapt on to [sic] the stage. Bacteria initiated a momentous change 2.3 billion years ago when they began flooding the air with a noxious gas called oxygen. Microorganisms that had been happily ‘breathing’ iron, sulphur and nitrogen for the first million millennia of biology were decimated by this highly reactive, DNA-damaging molecule. As oxygen levels rose, the metal-breathers and their kin retreated to marine muds and other oxygen-free quarters. New life forms evolved to take advantage of the peculiar conditions and found a way to use oxygen to rip more energy from their food, which is why we breathe deeply today."

"We live on a Goldilocks planet that has nurtured life as it has sailed through billions of laps around the Sun. Animals evolved from microbes that resembled sperm cells that wriggled in the sea; great apes, or hominids, were born 15 to 20 million years ago; apes like us, called hominins, arose in Africa more recently, and modern humans with fine-boned skeletons have been prancing around for less than 100,000 years. Plants assemble their tissues from carbon dioxide and the power of sunbeams, and we are energized by eating them and the flesh of animals that graze on fruits and vegetables. The digestive system releases small molecules from our food and these are propelled around the body in blood vessels to sustain every cell. The architecture and operation of the body is [sic] detailed in a cluttered instruction manual written in 20,000 genes spotted along 2 m of DNA. Construction takes nine months and includes wiring a big brain that endows the owner with a sense of self and the illusion of free will. Ageing of the body is unfaltering; after a few decades, the animal stops working and is decomposed."

"If there are favourable habitats and favorable forms of association for animals and plants, as ecology demonstrates, why not for men? If each particular natural environment has has its own balance; is there not perhaps an equivalent of this in culture?"

"Even when the pioneer didn't rape Nature, he divorced her a little too easily: he missed the great lesson that both ecology and medicine teach - that Man's great mission is not to conquer nature by main force but to cooperate with her intelligently but lovingly for his own purposes."

"A Healthy Ecology is the Basis for a Healthy Economy"

"Many people are under the illusion that before the meddling of humans, the populations of different types of plants and animals tended to be pretty much constant. This isn’t really the way things work, however, in a finite world. Instead, the populations of many species cycle up and down, depending on particular conditions such as the population of animals that prey on them, the availability of food, the prevalence of disease, and the weather conditions. Even forests exhibit surprising variability. Many undergo regular cycles of burning. In fact, some species of trees, such as the giant sequoias in Yosemite, require fire in order to reproduce. These cycles are simply part of the natural order of self-organizing ecosystems in a finite world."

"The biological world is constantly faced with the problem of too many animals (for example, wolves and deer) wanting to occupy a given space with specific resources, such as water, sunlight, and smaller plants and animals to eat."

"To halt the decline of an ecosystem, it is necessary to think like an ecosystem."

"In recent years it has become impossible to talk about man's relation to nature without referring to "ecology"...such leading scientists in this area as Rachel Carson, Barry Commoner, Eugene Odum, Paul Ehrlich and others, have become our new delphic voices...so influential has their branch of science become that our time might well be called the "Age of Ecology"."

"For some years now the activity of the artist in our society has been trending more toward the function of the ecologist: one who deals with environmental relationships. Ecology is defined as the totality or pattern of relations between organisms and their environment. Thus the act of creation for the new artist is not so much the invention of new objects as the revelation of previously unrecognized relation- ships between existing phenomena, both physical and metaphysical. So we find that ecology is art in the most fundamental and pragmatic sense, expanding our apprehension of reality."

"The beauty and genius of a work of art may be reconceived, though its first material expression be destroyed; a vanished harmony may yet again inspire the composer; but when the last individual of a race of living beings breathes no more, another heaven and another earth must pass before such a one can be again."

"It is noteworthy that human concern about human extinction takes a different form from human concern (where there is any) about the extinction of non-human species. Most humans who are concerned about the extinction of non-human species are not concerned about the individual animals whose lives are cut short in the passage to extinction, even though that is one of the best reasons to be concerned about extinction (at least in its killing form). The popular concern about animal extinction is usually concern for humans –- that we shall live in a world impoverished by the loss of one aspect of faunal diversity, that we shall no longer be able to behold or use that species of animal. In other words, none of the typical concerns about human extinction are applied to non-human species extinction."

"We are now living in the era of the sixth extinction crisis in the history of the planet, the last one occurring 65 million years ago when a meteor struck the Gulf of Mexico and annihilated half of existing species including the dinosaurs. Unlike the last five, however, the sixth extinction crisis is caused by human activity."

"This time it is we who are the meteor crashing into the earth, and we keep crashing and crashing and crashing, never allowing the planet to recover. We are a meteor storm that continuously, repetitively keeps slamming into the planet, precluding adaptation and blocking recovery. If we cannot learn how to live on this planet and harmonize our existence with other species and the biocommunity as a whole, then, frankly, we have no right to live at all. If we can only exploit, plunder, and destroy, then surely our demise is for the greater good. Whereas worms, pollinators, dung beetles, and countless other species are vital to a flourishing planet, Homo sapiens is the one species the earth could well do without."

"While certainly no cultures, peoples, and social systems have been as devastating to animals and the environment as modern capitalism, there was no Edenic time, no Golden Era, when humans lived in peace and harmony with one another, other species, and their natural surroundings. Problems like species extinction, resource depletion, desertification, and overall mindless destruction of life and ecosystems did not originate in European modernity but rather have deep roots in antiquity and prehistory."

"The human species is driving itself [at] full speed into an evolutionary dead-end. We are destroying the planet and everything we do murders animals and dismantles ecosystems. We have lost our moral compass. We think in terms of profit and power rather than ethics and compassion. We no longer have reverence for life or any sense of connection with the natural world. We see ourselves as conquerors of nature rather than citizens of a vast biocommunity. We are technologically sophisticated and morally stunted. We have no conception of the importance of nonhuman life forms in sustaining ecosystems and no sensitivity to the inherent value of species outside of our exploitative purposes. We fail to realize that what we do to animals and the earth, we do to ourselves. And all the while, we live in a fantasy land of entertainment and distractions whereby we focus more on the sex lives and surgical makeovers of movie stars than the most consequential changes unfolding in this planet in the last sixty-five million years."

"We have since built museums to celebrate the past, and spent decades studying prehistoric lives. And if all this has taught us anything, it is this: no species lasts forever."

"EXTINCTION, n. The raw material out of which theology created the future state."

"Global biodiversity decline is best understood as growing numbers of people and their rapidly expanding economic support systems crowding out other species. Conservation biologists standardly list five main direct drivers of biodiversity loss: habitat loss, of species, pollution, invasive species, and climate change. The ' found that in recent decades habitat loss was the leading cause of terrestrial , while overexploitation () was the most important cause of marine losses. All five direct drivers are important, on land and at sea, and all are made worse by larger and denser human populations."

"Much less frequently mentioned are, however, the ultimate drivers of those immediate causes of biotic destruction, namely, human overpopulation and continued population growth, and overconsumption, especially by the rich. These drivers, all of which trace to the fiction that perpetual growth can occur on a finite planet, are themselves increasing rapidly."

"Life has now entered a sixth mass extinction. This is probably the most serious environmental problem, because the loss of a species is permanent, each of them playing a greater or lesser role in the living systems on which we all depend . The species extinctions that define the current crisis are, in turn, based on the massive disappearance of their component populations, mostly since the 1800s. The massive losses that we are experiencing are being caused, directly or indirectly, by the activities of Homo sapiens. They have almost all occurred since our ancestors developed agriculture, some 11,000 y ago. At that time, we numbered about 1 million people worldwide; now there are 7.7 billion of us, and our numbers are still rapidly growing. As our numbers have grown, humanity has come to pose an unprecedented threat to the vast majority of its living companions."

"…we are fighting to leave as much biological heritage as we can for nature to do whatever it will do when we fall on our own sword and stop being the worst plague that ever existed—which is sadly what we are, collectively, in spite of the good and beautiful things that humans are also capable of."

"Let's not be too quick to blame the human race for everything. We must remember that a great many species of animals became extinct before man ever appeared on earth. At the same time it is probably true that when two husky representatives of Homo sapiens, with clubs, corner the last two birds of a species, no matter how far they have or have not evolved, both the phylogeny and the ontogeny of those birds are, to all intents and purposes, over."

"Capitalism is not necessarily more immoral than previous social systems with regard to cruelty to humans and the gratuitous destruction of nature. As a mode of production and a social system, however, capitalism requires people to be destructive of the environment. Three destructive aspects of the capitalist system stand out when we view this system in relation to the extinction crisis: 1) capitalism tends to degrade the conditions of its own production; 2) it must expand ceaselessly in order to survive; 3) it generates a chaotic world system, which in turn intensifies the extinction crisis."

"It is clear that only a giant change in human culture can significantly limit the extinction crisis. Humanity must face the need to reduce birth rates further, especially among the overconsuming wealthy and middle classes. In addition, a reduction of wasteful consumption will be necessary, accompanied by a transition away from environmentally malign technological choices such as private automobiles, plastic everything, and treating billionaires to space tourism. Otherwise growthmania will win; the human enterprise will not undergo the needed shrinkage, but will continue to expand, destroying most of biodiversity and further wrecking the life-support systems of humanity until global civilization collapses"

"The Brontosaurus had a brain no bigger than a crisp. The Dodo had a stammer, and the Mammoth had a lisp. The Auk was just too awkward. Now they're none of them alive; Each one, like Man, had shown himself unfitted to survive. Their story points a moral; now it's we who wear the pants. The extinction of these species holds a lesson for us ants."

"The human race currently consumes some 40% of the earth’s photosynthetic capacity. This monopoly on the earth’s resources is having a devastating effect. We are seeing the extinction of some 140 species every day, some thousands of times higher than the normal background rate. Today, right now, we are seeing extinction rates unparalleled in the history of the earth. We are undeniably in the midst of the seventh mass extinction event in the history of the earth — the Holocene Extinction. Unlikely previous extinction events, however, this one is driven by a single species. This is the true danger of overpopulation, not our inability to feed a growing population. As much as we would deny it, we depend on the earth to live. Dwindling biodiversity threatens the very survival of our species. We are literally cutting the ground out from under our feet. Increasing food production only increases the population; our current attitudes about food security has locked us into what Daniel Quinn called a “Food Race,” by comparison to the Arms Race of the Cold War."

"The introduction of a new alpha predator can have dramatic effects, even causing cascades of extinction. This is not necessarily because the alpha predators overhunt or are even in the least bit maladaptive; this is simply the nature of alpha predators and how they relate in any given ecology. When humans came to Australia and the Americas, they were as harmless as wolves, lions, or any other big mammalian predator. Their presence caused cascades of changes throughout the ecosystem. Given that it was also a period of major climate change, a great number of species that were already under stress adapting to the new climate were tipped over the edge into extinction by the further ecological changes created by the adaptation of a new alpha predator. Our ancestors were hardly noble savages; but neither were they bloodthirsty killers bent on the destruction of all life on earth. They were animals, like any other."

"Since 1970, overall numbers are down by 69%. Livestock and the human beings who farm them now account for 96% of all the mammals on Earth. The Sumatran tiger, the Bornean orangutan and the hellbender salamander are among the million animal and plant species judged perilously close to extinction."

"The extinction of the Australian Megafauna was probably the first significant mark Homo sapiens left on our planet."

"At the time of the Cognitive Revolution, the planet was home to about 200 genera of large terrestrial mammals weighing over fifty kilograms. At the time of the Agricultural Revolution, only about one hundred remained. Homo sapiens drove to extinction about half of the planet's big beasts long before humans invented the wheel, writing or iron tools."

"The elephant bird and the giant lemurs, along with most of the other large animals of Madagascar, suddenly vanished about 1.500 years ago - precisely when the first humans set foot on the island."

"Don't believe tree-huggers who claim that our ancestors lived in harmony with nature. Long before the Industrial Revolution, Homo sapiens held the record among all organisms for driving the most plant and animal species to their extinctions. We have the dubious distinction of being the deadliest species in the annals of biology."

"The First Wave Extinction, which accompanied the spread of the foragers, was followed by the Second Wave Extinction, which accompanied the spread of the farmers, and gives us an important perspective on the Third Wave Extinction, which industrial activity is causing today. Don’t believe tree-huggers who claim that our ancestors lived in harmony with nature. Long before the Industrial Revolution, Homo sapiens held the record among all organisms for driving the most plant and animal species to their extinctions. We have the dubious distinction of being the deadliest species in the annals of biology. Perhaps if more people were aware of the First Wave and Second Wave extinctions, they’d be less nonchalant about the Third Wave they are part of. If we knew how many species we’ve already eradicated, we might be more motivated to protect those that still survive. This is especially relevant to the large animals of the oceans. Unlike their terrestrial counterparts, the large sea animals suffered relatively little from the Cognitive and Agricultural Revolutions. But many of them are on the brink of extinction now as a result of industrial pollution and human overuse of oceanic resources. If things continue at the present pace, it is likely that whales, sharks, tuna and dolphins will follow the diprotodons, ground sloths and mammoths to oblivion. Among all the world’s large creatures, the only survivors of the human flood will be humans themselves, and the farmyard animals that serve as galley slaves in Noah’s Ark."

"Nature cannot be destroyed. Sixty-five million years ago, an asteroid wiped out the dinosaurs, but in so doing opened the way forward for mammals. Today, humankind is driving many [if not all] species into extinction and might even annihilate itself. But other organisms are doing quite well. Rats and cockroaches, for example, are in their heyday. These tenacious creatures would probably creep out from beneath the smoking rubble of a nuclear Armageddon, ready and able to spread their DNA. Perhaps 65 million years from now, intelligent rats will look back gratefully on the decimation wrought by humankind, just as we today can thank that dinosaur-busting asteroid."

"SEVENTY THOUSAND YEARS AGO, HOMO sapiens was still an insignificant animal minding its own business in a corner of Africa. In the following millennia it transformed itself into the master of the entire planet and the terror of the ecosystem. Today it stands on the verge of becoming a god, poised to acquire not only eternal youth, but also the divine abilities of creation and destruction. Unfortunately, the Sapiens regime on earth has so far produced little that we can be proud of. We have mastered our surroundings, increased food production, built cities, established empires and created far-flung trade networks. But did we decrease the amount of suffering in the world? Time and again, massive increases in human power did not necessarily improve the well-being of individual Sapiens, and usually caused immense misery to other animals. In the last few decades we have at last made some real progress as far as the human condition is concerned, with the reduction of famine, plague and war. Yet the situation of other animals is deteriorating more rapidly than ever before, and the improvement in the lot of humanity is too recent and fragile to be certain of. Moreover, despite the astonishing things that humans are capable of doing, we remain unsure of our goals and we seem to be as discontented as ever. We have advanced from canoes to galleys to steamships to space shuttles – but nobody knows where we’re going. We are more powerful than ever before, but have very little idea what to do with all that power. Worse still, humans seem to be more irresponsible than ever. Self-made gods with only the laws of physics to keep us company, we are accountable to no one. We are consequently wreaking havoc on our fellow animals and on the surrounding ecosystem, seeking little more than our own comfort and amusement, yet never finding satisfaction. Is there anything more dangerous than dissatisfied and irresponsible gods who don’t know what they want?"

"We are experiencing an accelerated obliteration of the planet’s life-forms — an estimated 8,760 species die off per year — because, simply put, there are too many people. Most of these extinctions are the direct result of the expanding need for energy, housing, food and other resources. The , , , , , , and are all victims of human overpopulation. Population growth, as E. O. Wilson says, is "the monster on the land." Species are vanishing at a rate of a hundred to a thousand times faster than they did before the arrival of humans. If the current rate of extinction continues, Homo sapiens will be one of the few life-forms left on the planet, its members scrambling violently among themselves for water, food, fossil fuels and perhaps air until they too disappear. Humanity, Wilson says, is leaving the , the age of mammals, and entering the Eremozoic — the era of solitude. As long as the Earth is viewed as the personal property of the human race, a belief embraced by everyone from Christians to Marxists to free-market economists, we are destined to soon inhabit a biological wasteland."

"Life may be unique to Earth. Even if single-celled organisms can readily evolve in conditions that exist on millions or billions of other planets, we have no actual evidence that complex, multi-cellular life exists anywhere else in the vastness of space. Bacteria appeared on our planet roughly 3.7 billion years ago; by 2 billion years ago, the tree of life was branching into what would become a stunning web of creatures, huge and tiny. Plants, animals, and fungi proliferated, formed relationships, and produced ecosystems. The result was a planet full of life, and one whose atmosphere, temperature, chemical composition, and weather are all largely shaped by the side effects of the strategies that organisms use to thrive. However, in a matter of mere centuries, we humans are unraveling the web of life and triggering a mass extinction event that is likely to impact virtually all species on the Earth, and to destabilize the fundamental planetary systems upon which we too depend. Mass extinctions have happened before. The web of life is, paradoxically, both resilient and fragile. On five previous occasions (most recently the Cretaceous-Tertiary extinction 65 million years ago) our world lost up to 95 percent of its species. The current wave of extinctions that’s being triggered by humans is, so far, not on the same scale, but it is proceeding far more rapidly than previous ones. We humans represent a new kind of threat to the rest of life: our development of language, tool-making, and fire-spreading rendered us hyper-effective hunters and foragers. Tens of thousands of years ago, we were already reshaping landscapes and impacting wildlife. Our ability to expand our own habitat has generated unwanted results: some prey animals were hunted to extinction, and in a process of competitive exclusion, humans caused many local extirpations by appropriating the resources of habitats for themselves. These unintended effects then impacted humans themselves, often by compromising their food supply. Therefore, over time, humans who stayed in any given ecosystem long enough to learn its limits embraced cultural traditions to moderate their demands on it. However, since the start of the European conquest of most of the rest of the world, and especially since society’s rapid adoption of fossil fuels starting around 1800, human impact on the biosphere has accelerated at a breathtaking pace. Expanding human populations and associated land use changes, industrial agriculture, industrial forestry, industrial-scale fishing, proliferation of toxic chemicals, and climate change are decimating native species of plants and animals around the world. According to some estimates, populations of many non-domesticated species have declined, on average, by 70 percent, and the pace of species extinctions has quickened to 100 or more times the usual or “background” rate. What will the world come to look like if these trends continue? In one scenario, Earth will have become fully domesticated in a century or two, so that humans and machines control planetary systems (including climate patterns, ocean currents, the water cycle, and the carbon cycle). In this possible case, very little of wild nature will be left. In the far more likely scenario, the unraveling of the web of life and the destabilization of planetary systems will lead to the collapse not just of biodiversity but civilization as well. Is it too late to save biodiversity and the living Earth? … I’ll argue that only a collective effort to put wild nature at the center of our priorities will prevent its devastation and the possible disappearance of our own species, among countless others."

"A few years ago, virtually no one was talking about this . . . everyone just assumed that the web of life would always be intact. Now the situation is so severe that the United Nations has set up a special task force to monitor it: the (IPBES). In 2019, it published its – a groundbreaking assessment of the planet's living species, drawing on 15,000 studies from around the world and representing the consensus of hundreds of scientists. It found an accelerating rate of global , unprecedented in human history."

"It's no wonder that we react so nonchalantly to the ever-mounting statistics about the crisis of mass extinction. We have a habit of taking this information with surprising calm. We don't weep. We don't get worked up. Why? Because we see humans as fundamentally separate from the rest of the living community. Those species are out there, in the environment. They aren't in here; they aren't part of us. It is not surprising that we behave this way. After all, this is the core principle of capitalism: that the world is not really alive, and it is certainly not our kin, but rather just stuff to be extracted and discarded – and that includes most of the human beings living here too. From its very first principles, capitalism has set itself at war against life itself."

"Humans have caused extinctions since leaving Africa 60,000+ years ago; in the last twelve millennia post-foraging societies have systematically increased their exploitation and control of the Earth. Humans groups rearrange the natural world in their own image, taking the homes and food of other species for their own."

"Our leaders willfully ignore the wisdom and the models of every other species on the planet—except of course those that have gone extinct."

"Beginnings, it’s said, are apt to be shadowy. So it is with this story, which starts with the emergence of a new species maybe two hundred thousand years ago. The species does not yet have a name—nothing does—but it has the capacity to name things. As with any young species, this one’s position is precarious. Its numbers are small, and its range restricted to a slice of eastern Africa. Slowly its population grows, but quite possibly then it contracts again—some would claim nearly fatally—to just a few thousand pairs. The members of the species are not particularly swift or strong or fertile. They are, however, singularly resourceful. Gradually they push into regions with different climates, different predators, and different prey. None of the usual constraints of habitat or geography seem to check them. They cross rivers, plateaus, mountain ranges. In coastal regions, they gather shellfish; farther inland, they hunt mammals. Everywhere they settle, they adapt and innovate. On reaching Europe, they encounter creatures very much like themselves, but stockier and probably brawnier, who have been living on the continent far longer. They interbreed with these creatures and then, by one means or another, kill them off. The end of this affair will turn out to be exemplary. As the species expands its range, it crosses paths with animals twice, ten, and even twenty times its size: huge cats, towering bears, turtles as big as elephants, sloths that stand fifteen feet tall. These species are more powerful and often fiercer. But they are slow to breed and are wiped out. Although a land animal, our species—ever inventive—crosses the sea. It reaches islands inhabited by evolution’s outliers: birds that lay footlong eggs, pig-sized hippos, giant skinks. Accustomed to isolation, these creatures are ill-equipped to deal with the newcomers or their fellow travelers (mostly rats). Many of them, too, succumb. The process continues, in fits and starts, for thousands of years, until the species, no longer so new, has spread to practically every corner of the globe. At this point, several things happen more or less at once to allow Homo sapiens, as it has come to call itself, to reproduce at an unprecedented rate. In a single century the population doubles; the doubles again, and then again. Vast forests are razed. Humans do this deliberately, in order to feed themselves. Less deliberately, they shift organisms from one continent to another, reassembling the biosphere."

"We are already experiencing huge cost externalities from population hypergrowth and profligate fossil fuel use in the form of environmental devastation. Of the earth’s estimated 10 million species, 300,000 have vanished in the past fifty years. Each year, 3,000 to 30,000 species become extinct, an all-time high for the last 65 million years. Within one hundred years, between one-third and two-thirds of all birds, animals, plants, and other species will be lost. Nearly 25 percent of the 4,630 known mammal species are now threatened with extinction, along with 34 percent of fish, 25 percent of amphibians, 20 percent of reptiles, and 11 percent of birds. Even more, species are having population declines. Environmental scientists speak of an “omega point” at which the vast interconnected networks of Earth’s ecologies are so weakened that human existence is no longer possible."

"We already have a planet -- Earth! Right here! And it's going to be here for at least another twenty years! Fifteen, if you use a plastic straw!"

"We are currently, in a systematic manner, exterminating all non-human living beings."

"There are no known complex organisms from other epochs that could throw long-range weapons they had fashioned. It allowed our ancestors to kill animals without touching them or they themselves being touched. To kill something, other organisms must catch them with their feet, claws, or teeth. Spiders could be considered an exception because of catching prey with webs. However, they still must kill their prey manually. The necessity of dispatching prey at close quarters levels the predator-prey playing field. The inability of any other known organism to throw was likely pivotal in providing relatively stable ecosystems for millions of years, before humans developed the throwing ability, only interrupted by geological or astrological events. While at first it was throwing rocks and spears, over the millennia we’ve gradually learned how to separate ourselves further and further from both predators and prey. The first improvement was the atlatl, or woomera, an implement allowing more energy and greater velocity to be applied to the throwing of a spear. The throwing arm together with the atlatl acts to increase the length of a lever. The premise is the same with fishing poles. Although challenging, it is possible to catch fish simply by hand-throwing a fishing line with a lure or bait. Native fishermen have been doing it for decades. However, much more line speed and distance can be attained using a fishing rod because it increases the length of the lever. Or look no further than your local park: ball throwers with those relatively new but already ubiquitous plastic grabbing sticks use the exact same principle for tossing balls for dogs to retrieve. The atlatl is believed to have been in use by early hominids in some parts of the world 30,000 years ago. The next significant step in weaponry was the bow and arrow. The oldest known evidence of arrows comes from the Sibudu Cave in South Africa. The bone-and-stone arrowheads found there are approximately 60,000–70,000 years old. Despite the early time frame, archery doesn’t appear to have been in widespread use until after the planet had lost most of its large mammals. The bow was an important weapon for both hunting and warfare from about 8,000 years ago to the mid-17th century. Bow-and-arrow use was almost certainly contributory to the uptick in animal and bird extinctions during that time frame. More recently, guns, bombs, and weaponized drones kill with limited or no interaction between the aggressor and victim. Humans have essentially turned killing into an enhanced video game."

"For the last 2.6 million years, the planet has experienced severe climatic fluctuations, during which the Earth waxed and waned between frigid ice ages and warm interglacial periods. Until approximately 60,000 years ago, there were few apparent extinctions. Suddenly, hundreds of species of mammals, flightless birds, and reptiles went extinct largely over the course of 50,000 years. These extinctions marked the beginning of a tidal wave of disappearing species that is cresting today. Because large body size is correlated with slow breeding, the largest animals are more susceptible to extinction."

"The numerous insults on the planet that humanity has created over the last 100 thousand years have achieved the capacity to greatly exacerbate any natural or human-caused event. We’re seeing this around the planet with more and more frequency. Global warming didn’t start the wildfires in Spain, Portugal, the United States, Canada, and Australia, but thanks to climate change, instead of inconsequential wildfires, they became roaring infernos. Hurricanes have always happened, but climate change is making their effect much more significant. Most people don’t understand that human population density, climate change, and the loss of biodiversity were the likely drivers of coronavirus becoming a pandemic. A loss in biodiversity usually results in a few species replacing many. These few species tend to be the ones hosting pathogens that can spread to humans and remaining animals. Rather than a loss of biodiversity, the problem is a highly contagious virus and a lack of commitment to wearing masks and social distancing. For most people […] those were wildfire, hurricane, and virus problems. When peering through the small keyhole of their existence, climate change, biodiversity loss, or population density is nowhere in sight."

"On a finite planet where a great number of organisms share the same space and depend on the same finite products of photosynthesis, the continuous expansion of one species results in the contraction of others. There is nothing more sacred to humans than our pets. While human overpopulation is occasionally mentioned in passing, pets always receive a free pass."

"Around two million years ago, a staggering ninety percent of the mammalian biomass in Africa and Asia was made up of elephants, hippos, and their rhinoceros-like buddies. This impressive lineup included at least nine species of elephants, four species of hippos, two species of rhinos, and a large cousin of the rhino-tapir-horse family known as Ancylotherium. The biggest shake-up in megafaunal species in Africa happened about 1.4 million years ago, roughly 300,000 years after Homo erectus made its debut and Australopithecus had disappeared. Since then, Africa and Asia have continued to experience megafaunal extinction events in fits and starts. Interestingly, during this two-million-year stretch, no large animal species went extinct on continents devoid of hominids, highlighting a unique and telling chapter in the evolutionary tale of the respective regions. The biodiversity of megafaunal species that roamed Europe and North America before humans showed up paints a fascinating picture—species like woolly mammoths, mastodons, and woolly rhinoceroses may have made up about 50% of the mammalian biomass in these regions. While this figure is less than what we saw in the Afroasian region, the megafaunal lineup in Europe and North America included some hefty ungulates that outclassed today’s bison in size. For instance, three species of bison, including the giant bison (Bison latifrons), were larger than the modern bison (Bison bison), but were swept away following the arrival of Homo sapiens. Although primary productivity remained unchanged with the extinction of the largest megafaunal animals, their loss created a vacuum that was quickly filled by a surge in populations of smaller critters, like bison and wildebeest. The absence of very large animals led to noticeably different effects on plants and soils, as more numerous smaller animals took their place. Overlooking the finite nature of the planet's primary productivity and the unique impacts of these smaller, more abundant species has fueled the persistence of [these] ecological myths […]. These misconceptions have led to a mixed bag of largely ineffective conservation efforts—some genuinely well-intentioned and others disingenuous."

"Megafaunal extinctions were just one act in the grand drama of the sixth mass extinction, which has been and will continue to include a plethora of plants and animals."

"When we look at the extinction of megafaunal animals in isolation, it ignores the chain reaction that led to the loss of tens of thousands, possibly even hundreds of thousands, of soil microorganisms and other tiny creatures."

"Long before the 20th century, the trajectory was set. Mesopotamia formalized private property and profit. Rome industrialized deforestation, mining, and overfishing. Every civilization reshaped ecosystems to sustain its growth and eventually collapsed when the foundations that supported it were exhausted. Deep time offers an even harder truth: humans began erasing biodiversity more than two million years ago. Civilization didn’t invent destruction; it scaled it. What changed in the last century was the speed, the technology, and the reach of decision-makers who could alter entire biomes with a single signature."

"The most wretched of all current trends is of course the mass extinction of organisms, which has been escalating for decades and is still increasing in magnitude."

"We are such great innovators that we have devised a way to be so successful that we are eliminating other species by transforming their habitat into ours serving only us and a few (both domesticated and wild) species who can tolerate living with us. By doing so, we are sawing off the limb upon which we are perched because those species support our own existence. Is it really any surprise that we hear constantly about alligator attacks, bear attacks, whale attacks, and shark attacks? Those four links go mainly to fatal attacks and not just injuries sustained by such attacks, but it should be fairly obvious to even the casual observer that we often forget that we don't truly "own" the areas where these creatures live. They live there, too, and we are encroaching upon their habitat. We have created the illusion in our minds that we are "safe" in these areas simply because we have labeled the land "ours." Nature doesn't recognize our labels, unfortunately, and one must be aware of this fact whenever [we enter] areas where wild animals live."

"Humans… have pursued our distinctively destructive path for a sliver of the total biotime in this corner of the galaxy. This most recent reshaping of nature began 3.3 million years ago, when an australopithecine made stone tools to butcher animal carcasses on the shores of the Jade Sea, or Lake Turkana, in Kenya. Weapons came later, with the use of stone-tipped thrusting spears by another hominid in South Africa 500,000 years ago, and the development of the bow and arrow by early humans 71,000 years ago. Projectile weapons, like the bow and arrow, allowed us to kill large animals without being excessively brave. Through a combination of these weapons, coupled with traps and fire, humans saw to the extinction of woolly mammoths, mastodons, sabre-toothed cats and ground sloths as the ice sheets receded and we pursued the animals to their last redoubts. A South American armadillo-like animal called Glyptodon was another victim of the genocide. This slow-moving vegetarian was as big as a Volkswagen Beetle and served as an easy target for hunters who ate its meat and crawled into its enormous shells for shelter. For many years, biologists argued that climate change was the most important factor in these extinctions, but more and more evidence points to the correspondence between the arrival of humans and the disappearance of large mammals. The case was pretty obvious for the spectacular bird life of islands, with a giant turkey called Sylviornis disappearing from New Caledonia soon after the prehistoric Lapita people arrived in their canoes 3,500 years ago, and the elimination of numerous species of flightless moa when the Maori reached New Zealand around AD 1300. Extinction has been reworking nature from its beginnings, but no animal has come close to having the impact that humans have had. With remarkable speed, our evolution walloped life with the power of the asteroid that obliterated the dinosaurs. The average size of mammals increased steadily throughout the Cenozoic Era that followed the crash of the Chicxulub asteroid in the Gulf of Mexico 65 million years ago. Then, around 100,000 years ago, the big animals began to disappear. The extinctions accelerated 50,000 years ago and the total mass of wild mammals has now plunged to a sixth of its pre-human maximum. According to some models, the domestic cow is on track to become the largest remaining mammal. Scepticism surrounding these doom-laden predictions about the precarious nature of nature is understandable. It takes imagination to escape from the influence of the diminishing expectations of each generation. Nobody has seen a live moa since the fourteenth century and so their absence does not upset New Zealanders today. The last passenger pigeon, named Martha, died… in 1914, and the most recent sky-darkening mass migrations of these birds took flight in the nineteenth century. We cannot miss something that has never existed for us. We read about extinction as an approaching horror and ecosystem damage as a work in progress rather than a done deal. But the destruction is unabated. Despite the publicity given to deforestation, tropical woodlands continue to disappear at an annual rate of 2.7 million hectares in Brazil, 1.3 million hectares in Indonesia and 0.6 million hectares in the Democratic Republic of Congo. Turning to the direct effects of climate change, one-third of the world’s coral reefs were damaged by high water temperatures in 2016. More than 90 per cent of Australia’s Great Barrier Reef was affected by the process called bleaching, which happens when the dinoflagellate algae abandon their animal partners in the exquisite coral symbiosis. When reefs recover from bleaching, the original animals are replaced by sluggish coral species that support impoverished communities of marine life. This is not a normal phenomenon."

"In the 1970s, we started noticing extinctions taking place right before our eyes. Attenborough makes the point that no one wanted animals to become extinct, but that lack of awareness and a focus on personal benefits obscured the unfolding tragedy. Having largely eliminated or isolated ourselves from predators, achieved control over diseases, and mastered food to order, nothing was left to restrict or stop us."

"If we do not devise an intentional method of suppressing human exceptionalism, we will foul the nest to the point of self-harm (sound familiar?) by precipitating an ecosystem collapse. In this unfortunate, unwitting undoing, we will have answered evolution’s question: how far can intelligence be pushed as a survival strategy before it is self-terminating? Or worse than self-terminating: taking numerous other innocent species down with us."

"Our fossil fuel bonanza has left our ecosystem in a perilous state. We have destroyed vast forests and habitat, polluted water and soil, kicked off a rapid climate trend that natural systems may not adapt to quickly enough, and basically overrun the planet. […] 96% of mammal mass on the planet is now in the form of humans and our livestock, leaving a paltry 4% of wild mammals—land and sea. Roughly 70% of vertebrate numbers have vanished since 1970 (undoubtedly a higher fraction if the survey had started in 1700). Forests are also way down."

"…because of megafauna extinctions, being the only species to use fire, and the fact that an ability for symbolic representation and complex speech might be the recipe for a runaway species capable of rapid cultural evolution and technology development out of step with the rest of the community of life, and therefore maladapted to long-term co-existence in ecological relationship. If it looks like we’re winning the “battle against nature” right now, that’s actually what losing looks like."

"Compared to the human accomplishment of driving the globe into a sixth mass extinction... elephants are shamefully worthless and lacking a final goal, as are all 10 million species on the planet—including us."

"Having initiated a sixth mass extinction, carried out by access to energy, continued powering of modernity (via electricity, for instance) most likely means compounding ecological harm, piling up accelerating extinctions, under which conditions high-maintenance humans are unlikely to fare well."

"The scale and rapidity of these changes create credible concern that we are witnessing (causing) the beginning of a sixth mass extinction. Earth has been slapped hard, out of nowhere, at alarming speed. Although the evidence of its reeling is all around us, it is far too soon to appreciate the severity of what we have set in motion. A hard slap on the face looks red in the moment, but later appears bruised and might turn into a black eye. We are currently only seeing the instant, real-time response and not the protracted bruising to follow, which will take a long time to play out as many wild populations glide toward extinction and domino-effect failures pile up. […] Ecological collapse is extremely dangerous to large, complex, hungry, high-maintenance animals like humans. We are not likely to fare well in a sixth mass extinction of our own making."

"We have loads of evidence for rapidly declining ecological health, in virtually every measure. Accelerating biodiversity loss rates are consistent with the initiation of a sixth mass extinction. Modernity has every appearance of being grossly unsustainable."

"Extinction rates are up 100–1,000 times the background rate—and possibly higher [and] we are currently witnessing the highest extinction rate since the Chicxulub impact that took out dinosaurs 65 million years ago. […] Annual population declines tend to be in the 1–2% range among mammals, birds, fish, and insects, accumulating to average declines of more than half in less than half a century."

"Finding out that 1 million species face extinction without radical corrective changes in human behavior is akin to finding out you have a fatal disease. One day you have a thousand problems; the next, you have just one. Nothing in today’s headlines compares to the catastrophic potential posed by climate change and the decimating effects of careless consumerism around the globe."

"In what year will the human population grow too large for the Earth to sustain? The answer is about 1970, according to research by the . In 1970, the planet's 3 and a half billion people were . But on this New Year's Day, the population is 8 billion. Today, wild plants and animals are running out of places to live."

"Indeed, in the long run, extinctions of species are as inevitable as the deaths of individual animals, and it may be that the causes of extinctions are as varied as the causes of individual deaths. A wave of extinctions—a sudden diminution in the number of species—is analogous to a sudden big drop in the size of a human population, an event that deserves to be explained even though the individual people would inevitably have died sooner or later anyway. Catastrophes in human populations have many causes: war, famine, and pestilence are the possibilities that first spring to mind. There may be equally many causes for evolutionary catastrophes, as waves of extinctions could well be called. Another possibility, however, is that extinctions come in waves that are part of a recurring cycle. It would then be the cycle itself, rather than each individual wave in the cycle, that would need to be explained. If there is such a cycle, it presumably follows a cycle in the inorganic world, such as cyclic climactic changes."

"Moreover, we have unleashed a mass extinction event, the sixth in roughly 540 million years, wherein many current life forms could be annihilated or at least committed to extinction by the end of this century."

"Given that human societies, before they migrated out of Africa, in significant numbers were as close to sustainable as we’re likely to get, that is the best we can hope for, at least for future generations. But let’s not pretend that there is some sustainable way of life for future humans (our species) that we could hope they would attain. We’ve done that experiment. Humans didn’t live in harmony with nature. They got close, but ultimately couldn’t restrain themselves from causing some extinctions and then many more extinctions when they followed their migratory traits."

"Species are threatened because of over-exploitation, habitat destruction, climate change, and so on. Efforts to reverse, or stall, a decline in population would have to go on indefinitely (i.e. would have to be sustainable) unless all of the factors involved in the decline are removed. But modernity is the cause of all of those factors so conservation will inevitably fail until modernity ends (and then there would be no conservation efforts with humans needing to be more involved in saving their own lives)."

"Long before the first kings, priests, or merchants inscribed their deeds in clay or papyrus, humans were altering ecosystems simply by moving through them. The great dispersal of our species out of Africa, beginning roughly 60,000–70,000 years ago, reshaped continents. Wherever humans arrived, waves of extinctions followed: giant marsupials in Australia, mammoths and mastodons across the Americas, enormous birds in New Zealand and Madagascar. These losses were not caused by Western civilization, or any civilization at all, but by small bands of foragers equipped with nothing more than stone tools, spears, and fire."

"Since after extinction no one will be present to take responsibility, we have to take full responsibility now."

"[The transition from Australopithecus to Homo] marked the shift from hominins that depend heavily on plants to ones that depend more on meat… Being a good predator is a general feature of our genus."

"[We] cannot bring back species from extinction… We are still driving 150 species to oblivion daily… Collapse will not change anything in our attitudes. As long as humans remain genetically identical to who they are today, I’m afraid they will collapse again, and again, after this coming collapse, and probably risk complete extinction. This is not speculation, but simply looking at historical evidence: over thousands of years we have collapsed pretty much constantly—anthropologists have documented the collapse of more than 82 (!!!) civilisations. We are now at the stage of a systemic, global collapse because we are one, united global economic machine that has used up everything on the planet. Our species is wired for growth, and we are designed to go through boom-and-bust cycles. What comes after the next bust will be a significantly smaller civilisation… There will be another, smaller boom, then collapse again. With each collapse many… “species” risk disappearance."

"[The Sixth Extinction] did not happen yesterday because we suddenly became aware of the dangers of global warming. It began 50,000 years ago when a relatively hairless primate stumbled out of equatorial Africa and began wiping out the megafauna of the time. Wherever this creature (our ancestor) went, their arrival was followed by large die-outs of megafauna. Primitive hominids were well-organized, efficient, slaughter crews. As they advanced, the mammoth, sabre-toothed cats, cave bears, giant sloths, camels, horses, and wholly rhinos fell to their stone weapons and deliberately set fires. The extinction of all of these great mega-species is directly attributable to "primitive" human hunters. The hunting down of the mega-fauna was followed by the advent of agriculture and the domestication of selected animals. Domesticated cows, goats, sheep, and pigs grew in numbers and denuded large areas of grasslands. Irrigation systems began to toxify land. Then agriculture was followed by industrial activities, and finally, by the burning off of vast amounts of fossil fuels."

"The love of wilderness is more than a hunger for what is always beyond reach; it is also an expression of loyalty to the earth, the earth which bore us and sustains us, the only home we shall ever know, the only paradise we ever need — if only we had the eyes to see."

"Wilderness is not a luxury but a necessity of the human spirit, and as vital to our lives as water and good bread."

"The idea of wilderness needs no defense. It only needs more defenders."

"He found him in a desert land, and in the waste howling wilderness."

"I tried to break the spell — the heavy, mute spell of the wilderness — that seemed to draw him to its pitiless breast by the awakening of forgotten and brutal instincts, by the memory of gratified and monstrous passions."

"The continued existence of wildlife and wilderness is important to the quality of life of humans. Our challenge for the future is that we realize we are very much a part of the earth's ecosystem, and we must learn to respect and live according to the basic biological laws of nature."

"There is in every American, I think, something of the old Daniel Boone — who, when he could see the smoke from another chimney, felt himself too crowded and moved further out into the wilderness."

"If I had my way about national parks, I would create one without a road in it. I would have it impenetrable forever to automobiles, a place where man would not try to improve upon God."

"Listening in wild places, we are audience to conversations in a language not our own."

"Many of the attributes most distinctive of America and Americans are the impress of the wilderness. … Shall we now exterminate this thing that made us Americans?"

"If we lose our wilderness, we have nothing left, in my opinion, worth fighting for; or to be more exact, a completely industrialized United States is of no consequence to me."

"Man always kills the thing he loves, and so we the pioneers have killed our wilderness. Some say we had to. Be that as it may, I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?"

"Wilderness is the raw material out of which man has hammered the artifact called civilization."

"In wilderness I sense the miracle of life, and behind it our scientific accomplishments fade to trivia."

"Beauty is a resource in and of itself. … I hope the United States of America is not so rich that she can afford to let these wildernesses pass by, or so poor she cannot afford to keep them."

"The clearest way into the Universe is through a forest wilderness."

"Large events to us but to these mountains? Nothing. That's what I love about the empty places of the world; places with few people and little to see save earth, sky, mountains and cold, cold stars. They help me keep matters in perspective."

"If the human population of the world continues to increase at its current rate, there will soon be no room for either wild life or wild places … But I believe that sooner or later man will learn to limit his overpopulation. Then he will be much more concerned with optimum rather than maximum, quality rather than quantity, and will recover the need within himself for contact with wilderness and wild nature."

"We are all travelers in … the wilderness of this world … and the best that we find in our travels is an honest friend."

"Something will have gone out of us as a people if we ever let the remaining wilderness be destroyed; if we permit the last virgin forests to be turned into comic books and plastic cigarette cases; if we drive the few remaining members of the wild species into zoos or to extinction; if we pollute the last clear air and dirty the last clean streams and push our paved roads through the last of the silence, so that never again will Americans be free in their own country from the noise, the exhausts, the stinks of human and automotive waste. And so that never again can we have the chance to see ourselves single, separate, vertical and individual in the world, part of the environment of trees and rocks and soil, brother to the other animals, part of the natural world and competent to belong in it. … We need wilderness preserved — as much of it as is still left, and as many kinds — because it was the challenge against which our character as a people was formed. The reminder and the reassurance that it is still there is good for our spiritual health even if we never once in ten years set foot in it."

"It is in vain to dream of a wildness distant from ourselves. There is none such."

"In Wildness is the preservation of the world."

"A wilderness, in contrast with those areas where man and his own works dominate the landscape, is hereby recognized as an area where the earth and its community of life are untrammeled by man, where man himself is a member of the natural community, a wanderer who visits but does not remain and whose travels leave only trails."

"A wilderness, in contrast with those areas where man and his own works dominate the landscape, is hereby recognized as an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain."

"To be whole. To be complete. Wildness reminds us what it means to be human, what we are connected to rather than what we are separate from."

"When predators are capable of regulating prey populations, then they may indirectly influence both the composition and biomass of plant communities by releasing them from herbivory."

"Predation is probably as old as (cellular) life itself, and it is likely to have existed in many different forms and at many different levels during the formative phases of the Cambrian explosion (which culminated between 550 and 540 Ma)"

"Each predator directly exerts a negative effect upon its prey, but predators may also provide indirect benefits to their prey. In ecosystems, such benefits are effected via indirect trophic pathways that can provide a more than compensating positive influence. The ecosystem of the Big Cypress National Preserve (southwest Florida) appears to contain an unusually high number of such predators—most notably, the American alligator, Alligator mississippiensis... the predation by alligators on snakes and turtles accounts for most of the trophic benefits bestowed. The actions of alligators in modifying their physical environment contributes to the maintenance of biotic diversity. It appears that the trophic influence of this species adds further evidence to the important role it plays in the functional ecology of the cypress wetland."

"Predation, in animal behaviour, [is] the pursuit, capture, and killing of animals for food. Predatory animals may be solitary hunters, like the leopard, or they may be group hunters, like wolves."

"The senses of predators are adapted in a variety of ways to facilitate hunting behaviour. Visual acuity is great in raptors such as the red-tailed hawk, which soars on high searching for prey. Even on a dark night owls can hear, and focus on, the rustling sound and movement of a mouse."

"Many insect-eating bats hunt by echolocation, emitting a pulsed, high-frequency sound—in the manner of a ship's sonar—while flying; the sensory data thus gained guides them to their prey."

"A flock of white pelicans will cooperate to form a semicircle and, with much flapping of wings, drive fish into shallow water where they are easily captured."

""Natural? Why would I give a damn about what's natural? Nature is a butcher! Nature is a goddamned butcher!" [...] This was a recurring theme with my mother. She loved the beauty of nature, loved animals of any species, but always she saw ugliness behind the beauty. Every bird at our backyard feeder would remind her of how many chicks and fledglings died for each bird that survived to maturity. Every image of wildlife on television or the web would bring to her mind the bloody, rapacious cycle of predator and prey. The boundless, uncaring wastefulness of nature infuriated her. All through my childhood our home was an impromptu hospital, rehabilitation clinic, and long-term rest home for a host of rescued wild and domesticated animals. Orphaned fledgling birds and baby squirrels, starving semi-feral alley cats, and then the mice and birds rescued from the jaws of those same cats."

"Although predation has likely played a central role in the evolution of primate socioecology, we currently lack a thorough understanding of how fine-scale variation in perceived predation risk affects primates' short-term space use patterns and predator avoidance strategies. White-faced capuchins (Cebus capucinus) monkeys perceive reduced predation risk in the high and middle forest layers, and they adjust their vigilance behavior to small-scale spatial variation in perceived risk."

"Stotting appears to inform the predator that it has been detected, but it does not invite or deter the predator from pursuing the Gazelle, it informs the mother that the neonate has been disturbed and is in need of defence. In addition, mothers whose neonates escaped capture by cheetahs stotted significantly more during the attempt than mothers whose neonates were caught."

"Whichever way man may look upon the earth, he is oppressed with the suffering incident to life. It would almost seem as though the earth had been created with malignity and hatred. If we look at what we are pleased to call the lower animals, we behold a universal carnage. We speak of the seemingly peaceful woods, but we need only look beneath the surface to be horrified by the misery of that underworld. Hidden in the grass and watching for its prey is the crawling snake which swiftly darts upon the toad or mouse and gradually swallows it alive; the hapless animal is crushed by the jaws and covered with slime, to be slowly digested in furnishing a meal. The snake knows nothing about sin or pain inflicted upon another; he automatically grabs insects and mice and frogs to preserve his life. The spider carefully weaves his web to catch the unwary fly, winds him into the fatal net until paralyzed and helpless, then drinks his blood and leaves him an empty shell. The hawk swoops down and snatches a chicken and carries it to its nest to feed its young. The wolf pounces on the lamb and tears it to shreds. The cat watches at the hole of the mouse until the mouse cautiously comes out, then with seeming fiendish glee he plays with it until tired of the game, then crunches it to death in his jaws. The beasts of the jungle roam by day and night to find their prey; the lion is endowed with strength of limb and fang to destroy and devour almost any animal that it can surprise or overtake. There is no place in the woods or air or sea where all life is not a carnage of death in terror and agony. Each animal is a hunter, and in turn is hunted, by day and night. No landscape is so beautiful or day so balmy but the cry of suffering and sacrifice rends the air. When night settles down over the earth the slaughter is not abated. Some creatures see best at night, and the outcry of the dying and terrified is always on the wind. Almost all animals meet death by violence and through the most agonizing pain. With the whole animal creation there is nothing like a peaceful death. Nowhere in nature is there the slightest evidence of kindness, of consideration, or a feeling for the suffering and the weak, except in the narrow circle of brief family life."

"The wolf, escorted by his milk-drawn dam, Unknown to mercy, tears the guiltless lamb; The towering eagle, darting from above, Unfeeling rends the inoffensive dove; The lamb and dove on living nature feed, Crop the young herb, or crush the embryon seed. Nor spares the loud owl in her dusky flight, Smit with sweet notes, the minstrel of the night; Nor spares, enamour'd of his radiant form, The hungry nightingale the glowing worm; Who with bright lamp alarms the midnight hour, Climbs the green stem, and slays the sleeping flower."

"Arrest with rising jaw the tribes above; With monstrous gape sepulchral whales devour Shoals at a gulp, a million in an hour. ―Air, earth, and ocean, to astonish'd day One scene of blood, one mighty tomb display! From Hunger's arm the shafts of Death are hurl'd, And one great Slaughter-house the warring world!""

"[[File:Eutropis (skink) eating a frog.jpg|alt=|thumb|One simple test of the claim that the pleasure in the world outweighs the pain [...] is to compare the feelings of an animal that is devouring another with those of the animal being devoured. ~ Arthur Schopenhauer]]It is better for the genes of Darwin's wasp that the caterpillar should be alive, and therefore fresh, when it is eaten, no matter what the cost in suffering. If Nature were kind, She would at least make the minor concession of anesthetizing caterpillars before they were eaten alive from within. But Nature is neither kind nor unkind. She is neither against suffering nor for it. Nature is not interested in suffering one way or the other unless it affects the survival of DNA. It is easy to imagine a gene that, say, tranquilizes gazelles when they are about to suffer a killing bite. Would such a gene be favored by natural selection? Not unless the act of tranquilizing a gazelle improved that gene's chances of being propagated into future generations. It is hard to see why this should be so, and we may therefore guess that gazelles suffer horrible pain and fear when they are pursued to the death– as many of them eventually are."

"Predation is an important selective force in evolution and is generally assumed to select against substandard individuals, i.e. the young, senescent, sick, or individuals in poor physical condition. Raptors did not hunt randomly, but rather preferentially predate on juveniles, sick gulls, and individuals with poor muscle condition. Strikingly, gulls with an unusually good muscle condition were also predated more than expected, supporting the mass-dependent predation risk theory."

"At first sight, domesticated animals may seem much better off than their wild cousins and ancestors. Wild buffaloes spend their days searching for food, water and shelter, and are constantly threatened by lions, parasites, floods and droughts. Domesticated cattle, by contrast, enjoy care and protection from humans. People provide cows and calves with food, water and shelter, they treat their diseases, and protect them from predators and natural disasters. True, most cows and calves sooner or later find themselves in the slaughterhouse. Yet does that make their fate any worse than that of wild buffaloes? Is it better to be devoured by a lion than slaughtered by a man? Are crocodile teeth kinder than steel blades?"

"Psychopaths are social predators, and like all predators, they are looking for feeding grounds. Wherever you get power, prestige and money, you will find them."

"Nature is babies with teeth growing up into their skulls. It's animals with open wounds rotting over without treatment. It's swollen feet and hunger and painful, infectious blindness. I see a healthy-looking animal getting ripped open and eaten alive by a predator, and while I flinch, I honestly think "Wow, it looked healthy - it was really lucky that only those last 30 minutes were intensely painful.""

"Observe, too, says Philo, the curious artifices of nature, in order to embitter the life of every living being. The stronger prey upon the weaker, and keep them in perpetual terror and anxiety. The weaker too, in their turn, often prey upon the stronger, and vex and molest them without relaxation. Consider that innumerable race of insects, which either are bred on the body of each animal, or flying about infix their stings in him. These insects have others still less than themselves, which torment them. And thus on each hand, before and behind, above and below, every animal is surrounded with enemies, which incessantly seek his misery and destruction."

"For many animals, alarm calls are more than simple squawks of fear. Vervet monkeys, for instance, use different sounds to warn of different types of predator. "Leopard!" is not the same as "snake!" or "eagle!" If you hide a loudspeaker in the bushes, and startle unsuspecting monkeys by playing recordings of "snake!" at them, they will look around at the ground. "Eagle!" makes them look up. "Leopard!" sends them scampering to the trees."

"Meerkats — those charismatic mongooses that stand on their hind legs to scan for predators — give calls that announce both the general type of predator (coming from the sky, coming from the ground) and how close it is — in other words, how urgently everyone should react. Black-capped chickadees — small songbirds that live in North America — have calls that say whether a predator is flying or resting, and if it is resting, how dangerous it is."

"Predators sometimes respond too. After all, alarm calls don't just let other animals know there's danger in the area. They can also let a predator know that it's been seen. Ambush predators, like leopards, often give up and go away once an alarm has been sounded."

"A while ago I watched a wildlife documentary about Komodo dragons poisoning, tracking for a week or so, and then, finally, when their victim became too weak to defend itself, disembowelling and eating alive, a water buffalo. The cameraman said this had been his first ever wildlife assignment, and it would probably also be his last, because he couldn't cope with the depth of suffering he had been forced to witness. That was just one poor creature. Each day, millions of animals are similarly forced to tear each other limb from limb to survive. And this has been going on for hundreds of millions of years. This is, in many ways, a beautiful world. But it's also a staggeringly cruel and horrific world for very many of its inhabitants."

"So flees the squirrel from the rattlesnake, and runs in its haste deliberately into the mouth of its tormentor. I am [Nature] that from which thou fleest."

"Whilst they discussed these and similar questions, two lions are said to have suddenly appeared. The beasts were so enfeebled and emaciated with hunger that they were scarcely able to devour the Icelander. They accomplished the feat however, and thus gained sufficient strength to live to the end of the day."

"Most Australian mammals are now protected by law to some degree, but this protection has come too late to prevent the endangerment of many species that, like the Tasmanian Tiger, may yet face extinction. Massive human predation of koalas for their fur and to clear land for farming and building, for example, coupled with ongoing loss of habitat, has meant that these iconic Australian animals are no longer a common sight across their once extensive range."

"Today, snares remain prevalent around the world. They are used in subsistence and commercial hunting (including the fur trade), poaching (including the bushmeat trade), recreational bushcraft, population control, predator and "pset" species control and occasionally research."

"Firefly females of the genus Photuris, long known to be carnivorous, attract and devour males of the genus Photinus by mimicking the flash-responses of Photinus females."

"Animals do not survive by rational thought (nor by sign languages allegedly taught to them by psychologists). They survive through inborn reflexes and sensory-perceptual association. They cannot reason. They cannot learn a code of ethics. A lion is not immoral for eating a zebra (or even for attacking a man). Predation is their natural and only means of survival; they do not have the capacity to learn any other."

"In the immense sphere of living things, the obvious rule is violence, a kind of inevitable frenzy which arms all things in mutua funera. Once you leave the world of insensible substances, you find the decree of violent death written on the very frontiers of life. Even in the vegetable kingdom, this law can be perceived: from the huge catalpa to the smallest of grasses, how many plants die and how many are killed! But once you enter the animal kingdom, the law suddenly becomes frighteningly obvious. A power at once hidden and palpable appears constantly occupied in bringing to light the principle of life by violent means. In each great division of the animal world, it has chosen a certain number of animals charged with devouring the others; so there are insects of prey, reptiles of prey, birds of prey, fish of prey, and quadrupeds of prey. There is not an instant of time when some living creature is not devoured by another [...] Thus is worked out, from maggots up to man, the universal law of the violent destruction of living beings. The whole earth, continually steeped in blood, is nothing but an immense altar on which every living thing must be sacrificed without end, without restraint, without respite until the consummation of the world, the extinction of evil, the death of death."

"...the most vicious predators, like most dread disease-causing microbes, bring about their own ruin by killing their victims. Restrained predation—the attack that doesn't kill or does kill only slowly—is a recurring theme in evolution. The predatory precursors of mitochondria invaded and exploited their hosts, but the prey resisted. Forced to be content with an expendable part of the prey (its waste)... some mitochondria precursors grew but never killed their providers. ...The original prey was probably a larger bacterium... - Leslie A. Real]]"

"The lioness sinks her scimitar talons into the zebra's rump. They rip through the tough hide and anchor deep into the muscle. The startled animal lets out a loud bellow as its body hits the ground. An instant later the lioness releases her claws from its buttocks and sinks her teeth into the zebra's throat, choking off the sound of terror. Her canine teeth are long and sharp, but an animal as large as a zebra has a massive neck, with a thick layer of muscle beneath the skin, so although the teeth puncture the hide they are too short to reach any major blood vessels. She must therefore kill the zebra by asphyxiation, clamping her powerful jaws around its trachea (windpipe), cutting off the air to its lungs. It is a slow death. If this had been a small animal, say a Thomson's gazelle (Gazella thomsoni) the size of a large dog, she would have bitten it through the nape of the neck; her canine teeth would then have probably crushed the vertebrae or the base of the skull, causing instant death. As it is, the zebra's death throes will last five or six minutes."

"The suffering that animals undergo while being caught and eaten may be intense and the process by which they are killed may last for a quarter of an hour or more. Because the number of predators worldwide is enormous, and because, like us, many of them must eat with considerable frequency, the aggregate amount of suffering in the world at any time that is caused by predation is unimaginably vast."

"Viewed from a distance, the natural world often presents a vista of sublime, majestic placidity. Yet beneath the foliage and hidden from the distant eye, a vast, unceasing slaughter rages. Wherever there is animal life, predators are stalking, chasing, capturing, killing, and devouring their prey. Agonized suffering and violent death are ubiquitous and continuous."

"Suppose that we could arrange the gradual extinction of carnivorous species, replacing them with new herbivorous ones. Or suppose that we could intervene genetically, so that currently carnivorous species would gradually evolve into herbivorous ones, thereby fulfilling Isaiah's prophecy. If we could bring about the end of predation by one or the other of these means at little cost to ourselves, ought we to do it?"

"The endangered western stock of the Steller sea lion (Eumetopias jubatus) – the largest of the eared seals – has declined by 80% from population levels encountered four decades ago. Current overall trends from the Gulf of Alaska to the Aleutian Islands appear neutral with strong regional heterogeneities...[studies] suggest predation on juvenile sea lions as the largest impediment to recovery of the species in the eastern Gulf of Alaska region...[study conclusion also suggests] the distinct possibility of predation as a major component of Steller sea lion population dynamics in particular at intermediate and low abundance levels."

"If there are any marks at all of special design in creation, one of the things most evidently designed is that a large proportion of all animals should pass their existence in tormenting and devouring other animals. They have been lavishly fitted out with the instruments necessary for that purpose; their strongest instincts impel them to it, and many of them seem to have been constructed incapable of supporting themselves by any other food. If a tenth part of the pains which have been expended in finding benevolent adaptations in all nature, had been employed in collecting evidence: to blacken the character of the Creator, what scope for comment would not have been found in the entire existence of the lower animals, divided, with scarcely an exception, into devourers and devoured, and a prey to a thousand ills from which they are denied the faculties necessary for protecting themselves! If were not obliged to believe the animal creation to be the work of a demon, it is because we need not suppose it to have been made by a Being of infinite power. But if imitation of the Creator's will as revealed in nature, were applied as a rule of action in this case, the most atrocious enormities of the worst men would be more than justified by the apparent intention of Providence that throughout all animated nature the strong should prey upon the weak."

"Why tinker with the plain truth that we hurry the darker races to their graves in order to take their land & its riches? Wolves don't sit in their caves, concocting crapulous theories of race to justify devouring a flock of sheep! "Intellectual courage"? True "intellectual courage" is to dispense with these fig leaves & admit all peoples are predatory, but White predators, with our deadly duet of disease dust & firearms, are examplars of predacity par excellence, & what of it?"

"'You didn't build that' will be Obama's political epitaph: With these remarks, Obama has come out of the closet as a most odious collectivist, who believes religiously that government predation is a condition for production Or, put simply, that the parasite created the host."

"The chief activities of beings, both human and non-human, are put forth, directly or indirectly, for the purpose of procuring food. The suppression, entire or partial, of one being by another for nutritive purposes is, therefore, the form of the most frequent and excessive egoism. The lowly forms of life—the worms, echinoderms, mollusks, and the like—are, for the most part, vegetarians. So, also, are prevalently the insects, birds, rodents, and ungulates. These creatures are not, as a rule, aggressively harmful to each other, chiefly indifferent. But upon these inoffensive races feed with remorseless maw the reptilia, the insectivora, and the carnivora. These being-eaters cause to the earth-world its bloodiest experiences. It is their nature (established organically by long selection, or, as in the case of man, acquired tentatively) to subsist, not on the kingdom of the plant, the natural and primal storehouse of animal energy, but on the skeletons and sensibilities of their neighbors and friends. The serpent dines on the sparrow and the sparrow ingulfs the gnat; the tiger slays the jungle-fowl and the coyote plunders the lamb; the seal subsists on fish and the ursus maritimus subsists on seal; the ant enslaves the aphidae and man eats and enslaves what can not get away from him. Life riots on life—tooth and talon, beak and paw. It is a sickening contemplation, But life everywhere, in its aspect of activity, is largely made up of the struggle by one being against another for existence—of the effort by one being to circumvent, subjugate, or destroy another, and of the counter effort to reciprocate or escape."

"Predators make it much more difficult to find consensus. It's a lot easier to agree about birds and plants than about animals that endanger people and livestock."

"It is easy to romanticise, say, tigers or lions and cats. We admire their magnificent beauty, strength and agility. But we would regard their notional human counterparts as wanton psychopaths of the worst kind."

"Think about Praying Mantis. The deadliest ninja predator. Why isn't his animus a lion or a polar bear - two of the most successful killing machines in the animal kingdom? The answer is that these animals would not be right for him. Think how a praying mantis is invisible on a leaf, how they are carnivores who will devour their own species. The female will even eat her own partner once they've mated and, as hatchlings, their first meal is often one of their own siblings. These are the things that matter to Praying Mantis - and if you study his attributes, they are elements that will help you defeat him."

"At the top of the pyramid—the terminal step—is a population of predators not generally subject to predation themselves."

"The suffering and death I saw seemed to me in some meaningful respect lamentable—that is, unfortunate, regrettable, worthy of sadness, the kind of thing it would be better if the world did not involve. What can be said for such a response, and what against it? Can my lamentation be rationally defended as appropriate, or must it be viewed as nothing more than mawkish sentimentalism? How should we view the fact that some animals need to kill other animals in order to live? Can a world in which animals did not kill each other, and indeed did not need to do so in order to live, plausibly be called a better one?"

"Predators merely remove surplus animals, ones that would succumb even in the absence of natural enemies. P.L. Errington exempts certain predator-prey relations from this scheme, however, and quotes the predation of wolves on deer as an example where predation probably is not related to the carrying capacity of the habitat."

"The principle of natural selection is not obviously a humanitarian principle; the predator-prey relation does not depend on moral empathy. Nature ruthlessly limits animal populations by doing violence to virtually every individual before it reaches maturity; these conditions respect animal equality only in the darkest sense."

"Where we can prevent predation without occasioning as much or more suffering than we would prevent, we are obligated to do so by the principle that we are obligated to alleviate avoidable animal suffering. Where we cannot prevent or cannot do so without occasioning as much or more suffering than we would prevent, that principle does not obligate us to attempt to prevent predation."

"Baldner contends that is "arrogant" and "paternalistic" morally to condemn something as definitive of the natural order as predation. However, it is in the nature of morality to devise ideals of a better world and to work toward realizing them. This entails judging this world to be less than ideal and working to change it. One could restrict moral evaluations to the products of human activity, but that would be arbitrary: what makes suffering (prima facie) morally bad is not that it is the result of human activity but that it is suffering. Our commitment to making the world a morally better place impels us to make moral evaluations of the natural order. There need be nothing either arrogant or paternalistic in making and acting on such evaluations, provided we recognize the very limited nature of our understanding and our power to make improvements."

"[A]nimals are not just subject to suffering like man, but subject to much more suffering; their existence is considered to be extremely unhappy, not only because they are exploited and tortured by man but also in nature itself, where the weaker one is threatened and devoured by the stronger, and, moreover, because at least many of them live on disgusting food or in uncomfortable places."

"One simple test of the claim that the pleasure in the world outweighs the pain [...] is to compare the feelings of an animal that is devouring another with those of the animal being devoured."

"[H]e saw in Java a plain far as the eye could reach entirely covered with skeletons, and took it for a battlefield; they were, however, merely the skeletons of large turtles, five feet long and three feet broad, and the same height, which come this way out of the sea in order to lay their eggs, and are then attacked by wild dogs , who with their united strength lay them on their backs, strip off their lower armour, that is, the small shell of the stomach, and so devour them alive. But often then a tiger pounces upon the dogs. Now all this misery repeats itself thousands and thousands of times, year out, year in. For this, then, these turtles are born. For whose guilt must they suffer this torment? Where fore the whole scene of horror? To this the only answer is: it is thus that the will to live objectifies itself."

"I bought from some villagers a young osprey they had caught on a sandbank, in order to rescue it from their cruel hands. But then I had to decide whether I should let it starve, or kill a number of small fishes every day in order to keep it alive. I decided on the latter course, but every day the responsibility to sacrifice one life for another caused me pain."

"It must be admitted that the existence of carnivorous animals does pose one problem for the ethics of Animal Liberation, and that is whether we should do anything about it. Assuming that humans could eliminate carnivorous species from the earth, and that the total amount of suffering among animals in the world were thereby reduced, should we do it?"

"Remove the predators, and the whole ecosystem begins to crash like a house of cards. As the sharks disappear, the predator-prey balance dramatically shifts, and the health of our oceans declines."

"I think that most people would associate big schools of fish with healthy coral reefs. At Kingman, the predators keep the herd thin, so there aren't a lot of big fish schools."

"I have come to view vegetarianism as a standing protest against predation, which is life's greatest evil. If there were no other argument in its favor, that would be sufficient."

"[Predation is] a great evil that a wise or benevolent creator would have avoided."

"Earth has no more distressing spectacle than that of a predator suddenly striking down some defenseless creature innocently singing or attending its young, no sight more pitifully repulsive than the hideously mangled remains of what, a few hours before, was a beautiful animal enjoying its life."

"Not long ago I was sleeping in a cabin in the woods and was awoken in the middle of the night by the sounds of a struggle between two animals. Cries of terror and extreme agony rent the night, intermingled with the sounds of jaws snapping bones and flesh being torn from limbs. One animal was being savagely attacked, killed and then devoured by another. [I]t seems to me that the horror I experienced on that dark night in the woods was a veridical insight. What I experienced was a brief and terrifying glimpse into the ultimately evil dimension of a godless world."

"For many decades, ecology textbooks presented classical competition theory without reservation. The central principle here is that two species sharing an essential resource that is in limited supply cannot coexist for long because the competitively superior species will eliminate the other one. The implication is that ecological communities should be characterized by division of resources among species, or niche partitioning. Predation and physical disturbance inflict so much damage on biotas of the seafloor that populations of one species seldom monopolize a potentially limiting resource, except sporadically and locally. As a result, it is uncommon for any species to drive another to extinction through competitive exclusion—or even to force another species to drastically change its exploitation of any environmental resource throughout its geographic range."

"Naysayers at their polite best chided the rewilders for romanticizing the past; at their sniping worst, for tempting a 'Jurassic Park' disaster. To these the rewilders quietly voiced a sad and stinging reply. The most dangerous experiment is already underway. The future most to be feared is the one now dictated by the status quo. In vanquishing our most fearsome beasts from the modern world, we have released worse monsters from the compound. They come in disarmingly meek and insidious forms, in chewing plagues of hoofed beasts and sweeping hordes of rats and cats and second-order predators. They come in the form of denuded seascapes and barren forests, ruled by jellyfish and urchins, killer deer and sociopathic monkeys. They come as haunting demons of the human mind. In conquering the fearsome beasts, the conquerors had unwittingly orphaned themselves."

"Heartless though it may seem to some, among the least harmful things to eat are sustainably culled wild animals. In the absence of natural predators, deer populations in parts of Britain have reached such dense numbers that the woodlands they browse fail to regenerate."

"Nature can be cruel. Predators are everywhere. Those who don't need to be protected from outside forces often need to be protected from themselves. In society, women are referred to as "the fairer sex". But in the wild, the female species can be far more ferocious than their male counterparts. Defending the nest is both our oldest and strongest instinct. And sometimes, it can also be the most gratifying."

"[W]hile many animals appear to endure such conditions rather calmly, this doesn't necessarily mean they aren't suffering. Sick and injured members of a prey species are the easiest to catch, so predators deliberately target these individuals. As a consequence, those prey that appear sick or injured will be the ones killed most often. Thus, evolutionary pressure pushes prey species to avoid drawing attention to their suffering."

"And even for the survivors, life involves a constant struggle to find enough food, avoid predators, and overcome sickness and injury for a few brief years (or months) before death comes at the jaws of a predator or the grip of a parasite. Pain is a powerful motivational tool, and evolution has no qualms about using it to maximum effect."

"When the predatory habit of life has been settled upon the group by long habituation, it becomes the able-bodied man's accredited office in the social economy or elude him, to overcome and reduce to subservience those alien forces that assert themselves refractorily in the environment."

"Predation can not become the habitual, conventional resource of any group or any class until industrial methods have been developed to such a degree of efficiency as to leave a margin worth fighting for, above the subsistence of those engaged in getting a living....The early development of tools and of weapons is of course the same fact seen from two different points of view. ...The predatory phase of culture is therefore conceived to come on gradually."

"Man and animals are really the passage and the conduit of food, the sepulchre of animals and resting place of the dead, one causing the death of the other, making themselves the covering for the corruption of other dead [bodies]."

"The simple facts are that both predation and starvation are painful prospects for deer, and that the lion's lot is no more enviable."

"What had been released into the desert vacuum and starry oases of the galaxy was the inexorable logic of reproduction and natural selection. What followed was parasitism, predation, symbiosis, interdependency—chaos, complexity, life."

"Well, let me tell you, ants are the dominant insects. They make up as much as a quarter of the biomass of all insects in the world. They are the principal predators. They're the cemetery workers."

"In prehistoric times, Homo sapiens were deeply endangered. Early humans were less fleet of foot, with fewer natural weapons and less well-honed senses than all the predators that threatened them. Moreover, they were hampered in their movements by the need to protect their uniquely immature young - juicy meals for any hungry beast."

"What is a predator? The answer is relatively straightforward for many species: an animal that eats another animal. However, recent research has shown that for other species the answer is more complex and that predatory species may not be as diet-limited as previously assumed."

"Regardless of whether one defines predator-prey interactions narrowly or broadly, what is clear is that at one point or another in the lives of most animals they are predators, prey, or both."

"Variation in plant food, especially flowers, has a strong effect on the dispersal of most omnivorous insect predators."

"Historically, predation and competition has received much more attention than mutualism. This bias is exemplified in the attention given to inter-specific interactions in ecology textbooks."

"An individual's response to local predation risk is shaped by the conflicting demands of predator avoidance and the benefits associated with a suite of fitness-related behaviors, such as foraging, mating and terrestrial defense."

"...predator avoidance can lead to delayed ontogenetic niche shifts, resulting in decreased growth rates"

"Trinidadian guppies from a high-predation population exhibited a more intense antipredator response than conspecifics from a low-predation-risk population."

"Populations exposed to varying predation threats, over time, may be selected toward the use of a learned response, because it would allow individuals to optimize the threat-sensitive trade-offs between survival and other fitness related benefits."

"Whether a species is a traditional predator (or an omnivore), or whether it responds to predation risk with fixed rather than learned behaviors, its success as a predator or a prey is determined by the capacity and efficiency of its sensory organs."

"Interactions between predators and prey are a major driving force for evolution and adaptation in animals. In any single encounter, the prey has more at stake, because failure means death, whereas the predator misses only a feeding opportunity."

"Flying insects can exhibit other characteristics that protect them from bat predation (which may also reduce the selective pressure for evolving auditory defenses). In rare cases, nocturnal insects reduce their exposure to bat predation by becoming diurnal (and restricting their amount of time that they fly at night) or by flying only at dusk before bats emerge."

"A more common strategy some insects employ to avoid bad predation is to continue flying at night but to vary their seasonal activity (either just after or before bats hibernate)."

"Both predation and predator evasion are expensive and themselves dangerous. Some of the costs are metabolic, and these costs have been studied at length. Potentially more important, however, are the structural and behavioral trade-offs animals must make to be successful predators or long lived prey."

"The ability of animals to perceive changes in predation risk forms the foundation on which the nonlethal effects of predators are transmitted to prey populations and communities."

"Recent neurological work suggests that the amygdala (in the vertebrate midbrain) is a key component in the assessment of predation risk and that differences in risk perception may reflect differences in the neural architecture of the amygdala."

"Sensory compensation is probably common in animals, for just about every species has at least two sensory modes that might be directed toward predator detection."

"The Challenge of Eating versus Being Eaten: Most prey that respond to predators also face a trade-off between increased survival in the presence of predators and slower growth and development. For example, many species of rotifers and cladocerons develop spines in response to fish and invertebrate predators."

"The extent that habitat structure influences spatial processes (e.g., numerical responses of predators, their inter-habitat dispersal, edge effects, and thus the coupling of predator-prey interactions in habitats compromised by human activity (e.g., fragmented landscapes) is also of immediate concern in conservation biology."

"Diverse feeding habits might act to buffer predator populations against fluctuations in nutrient availability of particular prey species."

"Perhaps you see big trees and little trees and think that big trees are older than little trees. You also might notice that there are more little trees than big trees, and so not every little tree grows up to be a big tree – most die young. But the little trees must come from somewhere, namely seeds produced and shed by the bigger trees. These are the core ideas of population ecology."

"When I was a student, back in the days when mammoths roamed the earth, ecologists tended to believe that the character of living systems was largely determined by abiotic factors. This means influences such as local climate, geology or the availability of nutrients. But it now seems that this belief arose from the study of depleted ecosystems. The rules they derived now appear to have described not the world in its natural state, but the world of our creation. We now know that living systems which retain their large carnivores and large herbivores often behave in radically different ways from those which have lost them."

"We situate the Special Research Forum on Organizational Ecology in the program of ecological research on organizations. We begin with a broad description of organizational ecology's theoretical and empirical development based on the contents of prior collections of work in the field. We then highlight key issues facing ecological research, outline how the articles in this special research forum are linked by common threads, and discuss their contributions. We close with suggested directions for future research."

"Until the mid-1970s, the prominent approach in organization and management theory emphasized adaptive change in organizations. In this view, as environments change, leaders or dominant coalitions in organizations alter appropriate organizational features to realign their fit to environmental demands (e.g. Lawrence and Lorsch 1967; Thompson 1967; Child 1972; Chandler 1977; Pfeffer and Salancik 1978; Porter 1980; Rumelt 1986). Since then, an approach to studying organizational change that places more emphasis on environmental selection processes, introduced at about that time (Aldrich and Pfeffer 1976; Hannan and Freeman 1977; Aldrich 1979; McKelvey 1982), has become increasingly influential. The stream of research on ecological perspectives of organizational change has generated tremendous excitement, controversy and debate in the community of organization and management theory scholars. Inspired by the question, Why are there so many kinds of organizations?"

"This paper investigates organizational mortality in the early American telephone industry, in which thousands of companies proliferated and failed under conditions of technological change. Drawing on the theory of community ecology, it is predicted that when technologies are systemic, technological change does not necessarily favor advanced organizations. Instead, mutualism is predicted among both advanced and primitive firms, as long as they are technologically standardized and differentiated. Competition is expected when organizations are technologically incompatible or non-complementary. The hypotheses are supported by dynamic models of organizational mortality, estimated using archival data describing the life histories of all telephone companies that operated in Pennsylvania up to 1934 and in southeast Iowa from 1900 to 1930."

"Recent research on organizational ecology is reviewed. Three levels of analysis and approaches to evolution are distinguished: (a) the organizational level, which uses a developmental approach; (b) the population level. which uses a selection approach; and (c) the community level, which uses a macroevolutionary approach. Theoretical and empirical research is critiqued within this framework. Proposals to develop organizational taxonomies are considered."

"Hannan and Freeman examine the ecology of organizations by exploring the competition for resources and by trying to account for rates of entry and exit and for the diversity of organizational forms. They show that the destinies of organizations are determined more by impersonal forces than by the intervention of individuals by the intervention of individuals."

"Major theory and research in organizational ecology are reviewed, with an emphasis on the organization and population levels of analysis and processes of organizational foundings, mortality, and change. The main approach to organizational foundings examines the roles of density dependence and population dynamics. Six approaches to studying organizational mortality are fitness set theory, liability of newness, density dependence, resource partitioning, liability of smallness, and the effects of founding conditions. Research on organizational change is just beginning to appear in the literature. The convergence between ecological and institutional research is discussed, especially the role of legitimacy in population dynamics, and the effects of institutional variables on vital rates. Some key criticisms of organizational ecology are addressed, and some suggestions for future research are proposed."

"This paper introduces a concept of organizational ecology. This refers to the organizational field created by a number of organizations, whose interrelations compose a system at the level of the field as a whole. The overall field becomes the object of inquiry, not the single organization as related to its organization-set. The emergence of organizational ecology from earlier organization theory is traced and illustrated from empirical studies. Its relevance to the task of institution-building, in a world in which the environment has become exceedingly complex and more interdependent, is argued."

"It is about the most awful thing you can imagine in terms of a non-fatal ailment. It's a parasitic disease and you know you've got it when at some point you develop a blister on your skin on your leg or your arm, and it's a burning blister and soon what emerges is a worm, and it's a worm that eventually, as it comes out, could be three-feet-long. It looks like a long strand of angel hair pasta and it's excruciatingly painful as it comes out. And the way it's transmitted is through drinking water. The worm, when it comes out, you've got that burning blister, your instinct is to want to immerse the skin in water. Well, when you do that, the worm puts out thousands and thousands of larvae that infects the drinking water. If anyone drinks the water, it gets into their system and a year later they develop a blister and out comes another worm."

"All infections, of whatever type, with no exceptions, are products of parasitic beings; that is, by living organisms that enter in other living organisms, in which they find nourishment, that is, food that suits them, here they hatch, grow and reproduce themselves."

"[The parasite that causes malaria] edges through the cells of the stomach wall of the mosquito and forms a cyst which grows and eventually bursts to release hundreds of "sporozoites" into the body cavity of the mosquito [...] As far as we can tell, the parasite does not harm the mosquito [...] It has always seemed to me, though, that these growing cysts [...] must at least give the mosquito something corresponding to a stomach-ache."

"[A] major difficulty in the parasite's life is the return to water. It is, therefore, of particular interest that the parasite appears to affect the behaviour of its hosts, and 'encourages' it to return to water. The mechanism by which this is achieved is obscure, but there are sufficient isolated reports to certify that the parasite does influence its hosts, and often suicidally for the host [...] One of the more dramatic reports describes an infected bee flying over a pool and, when about six feet over it, diving straight into the water. Immediately on impact the gordian worm burst out and swam into the water, the maimed bee being left to die."

"There is an extremely thin line of demarcation between the ferment and the parasite."

"I cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidæ with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice."

"Fell Oestrus buries in her rapid course Her countless brood in stag, or bull, or horse; Whose hungry larva eats its living way, Hatch'd by the warmth, and issues into day."

"The wing'd Ichneumon for her embryon young Gores with sharp horn the caterpillar throng. The cruel larva mines its silky course, And tears the vitals of its fostering nurse."

"What keeps snails and flukes apart in evolution is their divergent future interests, and this is because they do not share reproductive propagules. What keeps host genes together with host genes — and parasite genes together with parasite genes - is that they do share future interests. Parasites, then, have led us to the solution to the paradox of the organism. The genes in an organism share desiderata lists. And this is simply because they submit to the same meiotic lottery and possess the same stochastic gametic destiny."

"Let me repeat that these parasitic insects comprise ten percent of all known animal species. How can this be understood? Certainly we give our infants the wrong idea about their fellow creatures in the world. Teddy bears should come with tiny stuffed bearlice; ten percent of all baby bibs and rattles sold should be adorned with colorful blowflies, maggots, and screw-worms. What kind of devil’s tithe do we pay? What percentage of the world’s species that are not insects are parasitic? Could it be, counting bacteria and viruses, that we live in a world in which half the creatures are running from—or limping from—the other half?"

"Whoever looks at the insect world, at flies, aphides, gnats and innumerable parasites, and even at the infant mammals, must have remarked the extreme content they take in suction, which constitutes the main business of their life. If we go into a library or newsroom, we see the same function on a higher plane, performed with like ardor, with equal impatience of interruption, indicating the sweetness of the act. In the highest civilization the book is still the highest delight."

"To choose a rough example, think of a thorn which has stuck in a finger and produces an inflammation and suppuration. Should the thorn be discharged with the pus, then the finger of another individual may be pricked with it, and the disease may be produced a second time. In this case it would not be the disease, not even its product, that would be transmitted by the thorn, but rather the stimulus which engendered it. Now supposing that the thorn is capable of multiplying in the sick body, or that every smallest part may again become a thorn, then one would be able to excite the same disease, inflammation and suppuration, in other individuals by transmitting any of its smallest parts. The disease is not the parasite but the thorn. Diseases resemble one another, because their causes resemble each other. The contagion in our sense is therefore not the germ or seed of the disease, but rather the cause of the disease. For example, the egg of a taenia is not the product of a worm disease even though the worm disease may have been the cause, which first gave rise to the taenia in the intestinal contents—nor of the individual afflicted with the worm disease, but rather of the parasitic body, which, no matter how it may have come into the world at first, now reproduces itself by means of eggs, and produces the symptoms of the worm disease, at least in part. It is not the seed of the disease; the latter multiplies in the sick organism, and is again excreted at the end of the disease."

"It is only within the present epoch, that physiology and chemistry have reached the point at which they could offer a scientific foundation to agriculture; and it is only within the present epoch, that zoology and physiology have yielded any very great aid to pathology and hygiene. But within that time, they have already rendered highly important services by the exploration of the phenomena of parasitism. Not only have the history of the animal parasites, such as the tapeworms and the trichina, which infest men and animals, with deadly results, been cleared up by means of experimental investigations [...] but the terrible agency of the parasitic fungi and of the infinitesimally minute microbes, which work far greater havoc among plants and animals, has been brought to light."

"In this strange and apparently cruel operation one circumstance is truly remarkable. The larva of the Ichneumon, though every day, perhaps for months, it gnaws the inside of the caterpillar, and though at last it has devoured almost every part of it except the skin and intestines, carefully all this time it avoids injuring the vital organs, as if aware that its own existence depends on that of the insect upon which it preys!"

"The facts obtained in this study may possibly be sufficient proof of the causal relationship, that only the most sceptical can raise the objection that the discovered microorganism is not the cause but only an accompaniment of the disease [...] It is necessary to obtain a perfect proof to satisfy oneself that the parasite and the disease are [...] actually causally related, and that the parasite is the [...] direct cause of the disease. This can only be done by completely separating the parasite from the diseased organism [and] introducing the isolated parasite into healthy organisms and induce the disease anew with all its characteristic symptoms and properties."

"Nowhere is it more true that "prevention is better than cure," than in the case of Parasitic Diseases."

"Nearly all birds build nests of some kind in which to cradle their eggs and young. The cow-bird and cuckoo (European), however, are exceptions. These birds have the rather human practice of turning their cares and labours over to somebody else. They are loafers and parasites. They lay their eggs secretly in the nests of other birds, where their eggs are hatched and their young cared for by an alien mother. I have seen a mother song-sparrow hustling about among the shrubs and grasses for an hour at a time almost, gathering food for a young cow-bird nearly twice as big as she was, while her foundling sat phlegmatically at the foot of a tree chirping and fluttering its wings, and acting as a thankless and apparently bottomless receptacle for the morsel after morsel laboriously harvested for it by its tireless little foster-mother."

"I hope no such planet exists, but consider one where slow, painful death from parasitism is universal. How would we talk about nature on such a planet? What kind of book would Thoreau have written there?"

"Some species of carpenter ants infected with metacercariae of the fluke Brachylecithutn mosquensis, are more obese than noninfected ants and, unlike the latter, they do not conceal themselves but crawl on exposed surfaces where they are easily found by birds that are the next hosts of the fluke. This behaviour seems to be a remarkable example of an animal that sacrifices its life for its parasites. The 'sacrifice', of course, is induced by the parasite."

"The belief is growing on me that the disease is communicated by the bite of the mosquito [...] She always injects a small quantity of fluid with her bite—what if the parasites get into the system in this manner."

"I have failed in finding parasites in mosquitoes fed on malaria patients, but perhaps I am not using the proper kind of mosquito."

"Lately, however, on abandoning the brindled and grey mosquitos and commencing similar work on a new, brown species, of which I have as yet obtained very few individuals, I succeeded in finding in two of them certain remarkable and suspicious cells containing pigment identical in appearance to that of the parasite of malaria. As these cells appear to me to be very worthy of attention [...] I think it would be advisable to place on record a brief description both of the cells and of the mosquitos."

"This day relenting God Hath placed within my hand A wondrous thing; and God Be praised. At His command, Seeking His secret deeds With tears and toiling breath, I find thy cunning seeds, O million-murdering Death. I know this little thing A myriad men will save. O Death, where is thy sting? Thy victory, O Grave? [Poem he wrote following the discovery that the malaria parasite was carried by the amopheline mosquito]"

"After long pondering, I believe that I can define good and evil in terms to which even a biologist of the mechanical school can hardly take exception. At least, I fancy that I can do so for evil. The great evil of life is parasitism."

"I can think of a few microorganisms, possibly the tubercle bacillus, the syphilis spirochete, the malarial parasite, and a few others, that have a selective advantage in their ability to infect human beings, but there is nothing to be gained, in an evolutionary sense, by the capacity to cause illness or death. Pathogenicity may be something of a disadvantage for most microbes."

"The insidious lethality of a parasitic wasp, the cruelty of a cat playing with a mouse – these are, after all, just the tip of the iceberg. To ponder natural selection is to be staggered by the amount of suffering and death that can be the price for a single, slight advance in organic design. And it is to realize, moreover, that the purpose of this "advance" – longer, sharper canine teeth in male chimpanzees, say – is often to make other animals suffer or die more surely. Organic design thrives on pain, and pain thrives on organic design."

"Local Futures works to renew ecological, social, and spiritual well-being by promoting a systemic shift towards economic localization. A pioneer of the new economy movement, Local Futures has been raising awareness for four decades about the need to shift direction – away from dependence on global monopolies, and towards decentralized, regional economies."

"These programs are helping to catalyze a global movement for systemic change. Recognition of the importance of local economies is at an all-time high. Through our events and resources, we promote a holistic view of what it will take to heal the damage caused by the corporate-run economy and build structures that foster human and ecological wellbeing."

"Local Futures has been involved with cultural, economic and ecological issues for more than four decades now, and we are proud of our accomplishments. What follows is far from comprehensive, but gives an idea of the depth and breadth of our work. Our organization has always been ahead of its time... we were warning about the dangers of both biotechnology and so-called “free trade” (and the link between them) three decades ago, while at the same time pioneering the localization movement – the local food movement, in particular. It is very gratifying to see that these issues are finally beginning to receive the attention they deserve"

"Oceanic phytoplankton seems generally to be associated with low biodiversity, and phytoplankton biodiversity does not correlate with zooplankton biodiversity ..."

"The inability to control horizontal position or to swim against significant currents in open waters separates 'plankton' from the 'nekton' of active swimmers, which include adult fish, large cephalopods, aquatic reptiles, birds and mammals. In this way, plankton comprises organisms that range in size from that of viruses (a few tens of nanometres) to those of large jellyfish (a metre or more). Representative organisms include bacteria, protistans, fungi and metazoans."

"Phytoplankton and zooplankton — tiny drifting plants and animals — are vital components of the marine and freshwater aquatic food chains, and our waterways. Plankton communities reflect the effects of water quality and cannot isolate themselves as oysters do by closing their shells in adverse conditions. Plankton are effectilvely our aquatic 'canaries-in-a-cage' — they accumulate over days the effects of hourly changes in water quality."

"Despair is paralysis. It robs us of agency. It blinds us to our own power and the power of the earth. [...] Restoration is a powerful antidote to despair. Restoration offers concrete means by which humans can once again enter into positive, creative relationship with the more-than-human world, meeting responsibilities that are simultaneously material and spiritual. It’s not enough to grieve. It’s not enough to just stop doing bad things."

"Plants are the first restoration ecologists. They are using their gifts for healing the land, showing us the way."

"Restoration is imperative for healing the earth, but reciprocity is imperative for long-lasting, successful restoration. Like other mindful practices, ecological restoration can be viewed as an act of reciprocity in which humans exercise their caregiving responsibility for the ecosystems that sustain them. We restore the land, and the land restores us."

"Flowers turned to stone! Not all the botany Of Joseph Banks, hung pensive in a porthole, Could find the Latin for this loveliness, Could put the Barrier Reef in a glass box Tagged by the horrid Gorgon squint Of horticulture. Stone turned to flowers It seemed—you’d snap a crystal twig, One petal even of the water-garden, And have it dying like a cherry-bough."

"... [T]here were more shoals outside Than teeth in a shark’s head."

"Hunting by humans played a major role in extirpating terrestrial megafauna on several continents and megafaunal loss continues today in both terrestrial and marine ecosystems. Recent declines of large marine vertebrates that are of little or no commercial value, such as s, s and s, have focused attention on the ecological impacts of , in global fisheries. In spite of the recognition of the problem of bycatch, few comprehensive assessments of its effects have been conducted. Many vulnerable species live in pelagic habitats, making surveys logistically complex and expensive. Bycatch data are sparse and our understanding of the demography of the affected populations is often rudimentary. These factors, combined with the large spatial scales that pelagic vertebrates and fishing fleets cover, make accurate and timely bycatch assessments difficult. Here, we review the current research that addresses these challenging questions in the face of uncertainty, analytical limitations and mounting conservation crises."

"may act as both and . They influence local environments and s, determine related ecosystem processes and functions, and are associated with high levels of biodiversity. However, the intrinsic characteristics of megafauna species including long lifespan, large body size, sparseness and/or rarity, late maturity, and low fecundity, as well as high market value, make them very prone to extinction. Up to now, scientific interest and conservation efforts have mainly focused on terrestrial and marine megafauna, while freshwater species have received comparatively little attention, despite evidence suggesting that freshwaters are losing species faster than marine or terrestrial realms. The high susceptibility of freshwater megafauna to multiple threats, coupled with immense human pressure on freshwater ecosystems, places freshwater megafauna amongst the most threatened species globally. The main threats include , dam construction, , , and ."

"We identified a total of 362 extant megafauna species. We found that 70% of megafauna species with sufficient information are decreasing and 59% are threatened with extinction. Surprisingly, direct harvesting of megafauna for human consumption of meat or body parts is the largest individual threat to each of the classes examined, and a threat for 98% (159/162) of threatened species with threat data available. Therefore, minimizing the direct killing of the world's largest vertebrates is a priority conservation strategy that might save many of these iconic species and the functions and services they provide."

"Zoos worldwide are visited by great numbers of people, and many of these visitors prefer to see large, rare mammals, the so-called . Zoos and the researchers who use them also appear to prioritise these species, as evidenced by the number of scientific publications which investigate the welfare of charismatic rather than non-charismatic species. However, the charismatic animals also attract more welfare-related concern from groups and the media than the non-charismatics. To this extent the charismatics could be regarded as problematic animals in the zoo. ... However, there is also evidence that their popularity helps zoos achieve their conservation mission, both by increasing funding available for field conservation and by contributing towards education and awareness raising of conservation issues. Nevertheless, the non-charismatics are equally deserving of attention, and more work needs to be done on their welfare."

"The extinction of the Australian Megafauna was probably the first significant mark Homo sapiens left on our planet."

"At the time of the Cognitive Revolution, the planet was home to about 200 genera of large terrestrial mammals weighing over fifty kilograms. At the time of the Agricultural Revolution, only about one hundred remained. Homo sapiens drove to extinction about half of the planet's big beasts long before humans invented the wheel, writing or iron tools."