Nature

"...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]]"

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"[[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."

"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?"

"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."

"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."

"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!""

"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."

""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."

"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."

"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."

"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.""

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"As, pricked out with less and greater lights, between the poles of the universe, the Milky Way so gleameth white as to set very sages questioning."

"For the Milky Way, we find that the orbital speed increases and then remains roughly constant. This implies that we are still within the body of the Milky Way, even at the largest distances from the center of the Milky Way. We have not yet located the edge of the Milky Way; the Milky Way extends much further than the edge of the disk of stars (the visible disk)! The mass contained in the Milky Way (in the visible disk) is 2x1011 M(Sun). The mass contained in the Milky Way galaxy (out to as far as we can see HI gas) is 6x1011 M(Sun)."

"The GAIA project, which [was] slated to be launched by the European Space Agency by 2012, holds great promise for our attempts to solve the puzzle of the Milky Way’s formation. The GAIA satellite will be taking a massive stellar census, measuring the positions, motions and chemical compositions of more than a billion stars. It will, in effect, provide a three-dimensional map of our galaxy with unprecedented accuracy and resolution."

"More observations are needed before we can refine our models of the Milky Way’s evolution. For one thing, we are still uncertain about the formation timescale For the thin disk outside the w:Local Interstellar Cloud}solar neighborhood because we lack precise observational constraint."

"In the decades that followed, a number of observations indicated that the Galaxy could not have formed in such a rapid collapse. The ELS model, as originally proposed,could not be right. One notable alternative was suggested by the American astronomers Leonard Searle and Robert Zinn in 1978… Instead of a single-cloud collapse, Searle and Zinn proposed that the halo of the Milky Way formed by the aggregation of many cloud fragments, each of which may have already formed stars and globular clusters"

"The granddaddy of galactic-formation models was conceived in the early 1960s by three astronomers: Olin Eggen, Donald Lynden-Bell and Allan Sandage. Their 1962 publication played a seminal role in the field and is now simply referred to by the authors’ initials: ELS....According to ELS, the Milky Way began as a spherical cloud of gas—a protogalaxy—that was born collapsing toward its center.The original gas was poor in metals, and so stars formed as the cloud was collapsing would also be metal poor.These newly made stars maintained the kinematic properties of the gas in the collapsing cloud, and so followed eccentric orbits around the center of the Galaxy, forming the population II stars of the halo and the globular clusters. As the cloud contracted, some of its energy would have been lost to heat in a dissipative collapse;"

"It appears, however, that our galaxy’s formation was neither smooth nor continuous."

"As we arbitrarily divide the human body into a torso with a head and limbs, so we can conceptually separate the Galaxy into various components. The flying-saucer shape—consisting of the central bulge and the spiral disk—is only the most obvious part of the Galaxy. The spiral disk itself can be subdivided into a thin disk, which rises about 1,000 light-years above and below the galactic mid-plane, and a thick disk, which extends to about 3,500 light-years on either side of the plane. The relative flatness of our galaxy is evident when one considers that the galactic disk is generally thought to be about 120,000 light-years across. Our sun resides in the thin disk about 28,000 light-years from the galactic center... About 200 globular clusters are known, and they appear to be some of the oldest objects in the Galaxy. It took many decades of careful study to tease apart the various regions of the Milky Way, and the process of dissecting out fine-scale subregions continues even today.One of the reasons it’s so difficult is that we cannot measure the properties of all the stars in the Galaxy—they are simply too far away....the different orbits of the stars, their kinematic properties, provide a crucial distinction between stars that belong to different regions of the Galaxy"

"Although the development of new technologies has improved the quality of the observations and so refined the constraints on astronomers’ models, we are still far from a complete understanding of our galaxy’s evolution. Like our galaxy, the field itself is still evolving."

"A star’s kinematic properties are one of the ways that astronomers can recognize an interloper from another part of the Galaxy. ...The most metal-poor star ever observed in our galaxy is located in the halo. It is old and has a metallicity [Fe/H] of about -4.0, or about 10,000 times less than the Sun!"

"The Milky Way is a spiral disk galaxy, similar to many others we see in the sky. This surprisingly beautiful shape is so common among galaxies that the universe almost seems to delight in building them. The end product is especially remarkable in the light of what is believed to be the starting point: nebulous blobs of gas."

"It suggests a nebulous dim puff of star dust lost in the blaze of the Milky Way. Properly, the Jew ought hardly to be heard of; but he is heard of, has always been heard of. He is as prominent on the planet as any other people, and his importance is extravagantly out of proportion to the smallness of his bulk."