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April 10, 2026
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"The total amount of suffering per year in the natural world is beyond all decent contemplation. During the minute that it takes me to compose this sentence, thousands of animals are being eaten alive, many others are running for their lives, whimpering with fear, others are slowly being devoured from within by rasping parasites, thousands of all kinds are dying of starvation, thirst, and disease. It must be so. If there ever is a time of plenty, this very fact will automatically lead to an increase in the population until the natural state of starvation and misery is restored."
"The pressure of growth among animals is a kind of terrible hunger. These billions must eat in order to fuel their surge to sexual maturity so that they may pump out more billions of eggs. And what are the fish on the bed going to eat, or the hatched mantises in the Mason jar going to eat, but each other? There is a terrible innocence in the benumbed world of the lower animals, reducing life there to a universal chomp. Edwin Way Teale, in The Strange Lives of Familiar Insects—a book I couldn't live without—describes several occasions of meals mouthed under the pressure of a hunger that knew no bounds."
"Nature, it is urged, is cruel, and careless of the happiness of her millions of subjects. The woods where the poet found refreshment are a battlefield and a slaughter-house for other creatures. [That] pain and fear and bloodshed are a part of the law of life."
"Even if we were required to meddle in nature, protecting animals from predators would not be a high priority – if it would be sensible at all. Better that we help whales stuck in ice or protect animals threatened by natural disaster. Predators are, with very few exceptions (such as humans), exclusively or primarily carnivores, being unable to survive without meat. To protect the gazelle from the lion, or the elephant from the hyena, would be to save one but doom the other. It seems very doubtful that we are obligated to pick sides here (even if shooting a lion might cause the lion less suffering than what her gazelle victims would experience). Nature really seems to be "red in tooth and claw" when it comes to carnivores. In conclusion, the reductio argument concerning positive obligations to animals fails. Contrary to that argument, if the combination of equal consideration and our obligations to humans supports any positive obligations to animals, these obligations prove to be plausible ones."
"The great outer oceans teem with fish, reptiles, turtles, shellfish, worms and other creatures, as numerous as the grains of malt in the bottom of a beer-barrel. There are serpents and monsters so big that their bodies can wind many times around Mount Meru. Other creatures are as small as particles of dust or the tip of a needle. They all undergo immense sufferings. The bigger ones swallow up the smaller ones. The small ones burrow into the big ones and eat them alive in their turn. The big animals all have many tiny ones living inside them, feeding on their flesh. Some of these creatures are born between the continents, where the sun does not shine and where they cannot even see whether their limbs are bent in or stretched out. Stupid and ignorant, they have no comprehension of what to do and what not to do. They are reborn in places where suffering knows no bounds."
"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 catterpiller throng. The cruel larva mines its silky course, And tears the vitals of its fostering nurse"
"Yes, do as you would be done by—and not to the dark man and the white woman alone, but to the sorrel horse and the gray squirrel as well; not to creatures of your own anatomy only, but to all creatures. You cannot go high enough nor low enough nor far enough to find those whose bowed and broken beings will not rise up at the coming of the kindly heart, or whose souls will not shrink and darken at the touch of inhumanity. Live and let live. Do more. Live and help live. Do to beings below you as you would be done by beings above you. Pity the tortoise, the katydid, the wild-bird, and the ox. Poor, undeveloped, untaught creatures! Into their dim and lowly lives strays of sunshine little enough, though the fell hand of man be never against them. They are our fellow-mortals. They came out of the same mysterious womb of the past, are passing through the same dream, and are destined to the same melancholy end, as we ourselves. Let us be kind and merciful to them."
"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!"
"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."
"It's no mystery why organisms sometimes harm one another. Evolution has no conscience, and if one creature hurts another to benefit itself, such as by eating, parasitizing, intimidating, or cuckolding it, its descendants will come to predominate, complete with those nasty habits. All this is familiar from the vernacular sense of "Darwinian" as a synonym for "ruthless" and from Tennyson's depiction of nature as red in tooth and claw."
"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?"
"Beasts are the subjects of tyrannic sway, Where still the stronger on the weaker prey; Man only of a softer mold is made, Not for his fellows' ruin, but their aid."
"That there is much suffering in the world no one disputes. Some have attempted to explain this in reference to man by imagining that it serves for his moral improvement. But the number of men in the world is as nothing compared with that of all other sentient beings, and these often suffer greatly without any moral improvement. A being so powerful and so full of knowledge as a God who could create the universe, is to our finite minds omnipotent and omniscient, and it revolts our understanding to suppose that his benevolence is not unbounded, for what advantage can there be in the sufferings of millions of the lower animals throughout almost endless time?"
"I was walking along the bank of a stream when I saw a mother otter with her cubs, a very endearing sight, I'm sure you'll agree. And even as I watched, the mother otter dived into the water and came up with a plump salmon, which she subdued and dragged onto a half submerged log. As she ate it, while of course it was still alive, the body split and I remember to this day the sweet pinkness of its roes as they spilled out, much to the delight of the baby otters, who scrambled over themselves to feed on the delicacy. One of nature's wonders, gentlemen. Mother and children dining upon mother and children. And that is when I first learned about evil. It is built into the very nature of the universe. Every world spins in pain. If there is any kind of supreme being, I told myself, it is up to all of us to become his moral superior."
"A likely objection to my proposed long-term attempt to alleviate animal suffering is that it is very risky; the ecological system is too dangerous to tamper with. At our current levels of scientific and technological capabilities, I fully agree with this objection and do not advocate actions in the near future. However, this should not prevent us from aspiring to understanding more and hope to be able to help alleviate animal suffering in the future. Some people may believe that we should never think about tampering with the ecosystem, This may well suit the purpose of our lucky species which appears to enjoy positive welfare. But what if I am right that most other sentient species are suffering enormously? If and when we can confidently reduce their suffering enormously at a small cost and very small risk to ourselves, should we cautiously proceed to help them or should we postpone indefinitely? Analogously, if people in poor countries are suffering enormously from their poverty, and if people in the rich countries can help them develop out of their poverty at a very small risk of aggravating the global environment, should the help be extended? What if you were one of the suffering poor? What if we were one of the suffering species? Let us at least agree that more resources be put into the study of welfare biology."
"Such is the condition of organic nature! whose first law might be expressed in the words, "Eat or be Eaten!" and which would seem to be one great slaughter-house, one universal scene of rapacity and injustice!"
"Wild animals almost never die of old age: starvation, disease, or predators catch up with them long before they become really senile. Until recently this was true of man too. Most animals die in childhood, many never get beyond the egg stage. Starvation and other causes of death are the ultimate reason why populations cannot increase indefinitely. But as we have seen for our own species, there is no necessary reason why it ever has to come to that. If only animals would control their birth rates, starvation need never happen."
"On top of all the miseries inflicted by predators and parasites, the members of a species show no pity to their own kind. Infanticide, siblicide, and rape can be observed in many kinds of animals; infidelity is common even in so-called pair-bonded species; cannibalism can be expected in all species that are not strict vegetarians; death from fighting is more common in most animal species than it is in the most violent American cities ... Perhaps biology would have been able to mature more rapidly in a culture not dominated by Judeo-Christian theology and the Romantic tradition. It might have been well served by the First Holy Truth from [Buddha's] Sermon at Benares: "Birth is painful, old age is painful, sickness is painful, death is painful..." As soon as we recognize that there is nothing morally commendable about the products of evolution, we can describe human psychology honestly, without the fear that identifying a "natural" trait is the same as condoning it. As Katharine Hepburn says to Humphrey Bogart in The African Queen, "Nature, Mr. Allnut, is what we are put in this world to rise above.""
"The wild animals that share our human world, in particular, live in constant fear. They cannot eat a single mouthful of food without being on their guard. They have many mortal enemies, for all animals prey on each other and there are always hunters, beasts of prey and other threats to life. Hawks kill small birds, small birds kill insects, and so on, continually amassing evil actions in an endless round of killing and being killed."
"Many believers in animal rights and the relevance of animal welfare do not critically examine their basic assumptions ... [T]ypically these individuals hold two conflicting views. The first view is that animal welfare counts, and that people should treat animals as decently as possible. The second view is a presumption of human non-interference with nature, as much as possible ... [T]he two views are less compatible than is commonly supposed. If we care about the welfare and rights of individual animals, we may be led to interfere with nature whenever the costs of doing so are sufficiently low."
"In other cases we are interfering with nature, whether we like it or not. It is not a question of uncertainty holding us back from policing, but rather how to compare one form of policing to another. Humans change water levels, fertilize particular soils, influence climatic conditions, and do many other things that affect the balance of power in nature. These human activities will not go away any time soon, but in the meantime we need to evaluate their effects on carnivores and their victims."
"More controversially, technology can accelerate the transition from harming to helping free-living sentient beings: mankind's fitfully expanding "circle of compassion". The civilising process needn't be species-specific but instead extend to free-living dwellers in tomorrow's wildlife parks. Every cubic metre of the biosphere will soon be computationally accessible to surveillance, micro-management and control. Fertility regulation via immunocontraception can replace Darwinian ecosystems governed by starvation and predation. Any species of obligate carnivore we choose to preserve can be genetically and behaviourally tweaked into harmlessness. Asphyxiation, disembowelling, and agonies of being eaten alive can pass into the dustbin of history."
"Faced with the massive destruction of the environment by humans, environmentalists cling to the myth of Mother Nature to be preserved. I am revolted by the extermination of the foxes; this may seem contradictory to my revolt against what hare foxes do. I have a problem there that I cannot solve. And I have others, even more difficult. Why should I, in order to call a problem a problem, be able to suggest a solution, if possible within an hour? No one knows how to beat AIDS, but that does not prevent us from being aware that AIDS is a problem. And above all to seek solutions."
"If the universe were self-aware, the only reasonable conclusion one could reach about it is that it hates itself, as it has decided to manifest itself as a legion of survival machines that tear each other apart for a living."
"Utility, rights, and holistic standards all point toward some modest steps to limit or check the predatory activity of carnivores relative to their victims. At the very least, we should limit current subsidies to nature's carnivores. Policing nature need not be absurdly costly or violate common-sense intuitions."
"The moralistic fallacy is that what is good is found in nature. It lies behind the bad science in nature-documentary voiceovers: lions are mercy-killers of the weak and sick, mice feel no pain when cats eat them, dung beetles recycle dung to benefit the ecosystem and so on."
"It is often assumed that wild animals live in a kind of natural paradise and that it is only the appearance and intervention of human agencies that bring about suffering. This essentially Rousseauian view is at odds with the wealth of informatio n derived from field studies of animal populations. Scarcity of food and water, predation, disease and intraspecific aggression are some of the factors which have been identified as normal parts of a wild environment which cause suffering in wild animals on a regular basis."
"A happy home of sunshine, flowers and streams. Yet in the sweetest places cometh ill, A noisome weed that burthens every soil; For snakes are known with chill and deadly coil To watch such nests and seize the helpless young, And like as though the plague became a guest, Leaving a houseless home, a ruined nest— And mournful hath the little warblers sung When such like woes hath rent its little breast."
"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."
"[E]cosystems do not only have value aesthetically and prudentially, they also have disvalue. In aesthetic terms, few of us enjoy the sight of animals dying through starvation or disease. And many of us also recoil rather than feel a sense of wonder at the reality of predation. And, as we have seen, ecosystems also possess prudential disvalue. As well as improving the well-being of sentient animals of which they are a part, they also facilitate their suffering. This means that if we value ecosystems for the the beauty and the well-being they afford, we cannot object to interventions which interfere with and change those ecosystems if they increase that beauty and well-being. In other words, then, it appears that sometimes out duty may be to protect ecosystems, and at other times it may be to interfere with them."
"The irrationality of the "appeal to Nature" is illustrated by a simple thought-experiment. Imagine, fancifully, if starvation, disease, parasitism, disembowelling, asphyxiation and being eaten alive were not endemic to the living world — or such miseries have already been abolished and replaced by an earthly paradise. Would anyone propose there is ethical case for (re)introducing them? Even proposing such a thought-experiment can sound faintly ridiculous."
"Sound good? Nice parrots. However, they are merely postponing the point at which the red teeth and claws come into the picture. These parrot parents produce more than two offspring. What do you think happens to most of them? They go off and found happy egalitarian parrot families of their own? Maybe for a little while. But a species can't expand indefinitely. Most of these new parrots will get eaten or starve to death. The lucky few will go on to put dozens of new parrots into the world, for natural selection to claw apart and eat alive. r is evil, but K is not so great either."
"In our guardianship of the rights of animals, must we not protect the weak among them against the strong? Must we not put to death blackbirds and thrushes because they feed on worms, or (if capital punishment offends our humanitarianism) starve them slowly by permanent captivity and vegetarian diet? What becomes of the 'return to nature' if we must prevent the cat's nocturnal wanderings, lest she should wickedly slay a mouse? Are we not to vindicate the rights of the persecuted prey of the stronger? Or is our declaration of the rights of every creeping thing to remain a mere hypocritical formula to gratify pug-loving sentimentalists."
"Much more seriously, in those traditional eco-systems that we chose to retain, millions of non-human animals will continue periodically to starve, die horribly of thirst and disease, or even get eaten alive. This is commonly viewed as "natural" and hence basically OK."
"But, good heavens! the whole plan of life is one of rapine. We did not fashion the spider to prey upon the fly, or the cat to play with the wounded mouse. We did not ordain that the strong should fall upon the weak, and tear and torture them for their own benefit. Surely we are not responsible for the brutalities of the animal creation."
"There is, in fact, but one great crime in the universe, and most of the instances of terrestrial wrong-doing are instances of this crime. It is the crime of exploitation—the considering by some beings of themselves as ends, and of others as their means—the refusal to recognize the equal, or the approximately equal, rights of all to life and its legitimate rewards—the crime of acting toward others as one would that others would not act toward him. For millions of years, almost ever since life began, this crime has been committed, in every nook and quarter of the inhabited globe."
"If we already lived in a cruelty-free world, the notion of re-introducing suffering, exploitation and creatures eating each other would seem not so much frightful as unimaginable – no more seriously conceivable than reverting to surgery without anaesthesia today."
"Humans already massively intervene in Nature, whether through habitat destruction, captive breeding programs for big cats, "rewilding", etc. So the question is not whether humans should "interfere", but rather what ethical principles should govern our interventions."
"Nature is no sentimentalist,—does not cosset or pamper us. We must see that the world is rough and surly, and will not mind drowning a man or a woman; but swallows your ship like a grain of dust. The cold, inconsiderate of persons, tingles your blood, benumbs your feet, freezes a man like an apple. The diseases, the elements, fortune, gravity, lightning, respect no persons. The way of Providence is a little rude. The habit of snake and spider, the snap of the tiger and other leapers and bloody jumpers, the crackle of the bones of his prey in the coil of the anaconda,—these are in the system, and our habits are like theirs. You have just dined, and, however scrupulously the slaughter-house is concealed in the graceful distance of miles, there is complicity,—expensive races,—race living at the expense of race. ... The cholera, the small-pox, have proved as mortal to some tribes, as a frost to the crickets, which, having filled the summer with noise, are silenced by a fall of the temperature of one night. Without uncovering what does not concern us, or counting how many species of parasites hang on a bombyx; or groping after intestinal parasites, or infusory biters, or the obscurities of alternate generation;—the forms of the shark, the labrus, the jaw of the sea-wolf paved with crushing teeth, the weapons of the grampus, and other warriors hidden in the sea,—are hints of ferocity in the interiors of nature. Let us not deny it up and down. Providence has a wild, rough, incalculable road to its end, and it is of no use to try to whitewash its huge, mixed instrumentalities, or to dress up that terrific benefactor in a clean shirt and white neckcloth of a student in divinity."
"More seriously still, the value commitments of the humane movement seem at bottom to betray a world-denying or rather a life-Ioathing philosophy. The natural world as actually constituted is one in which one being lives at the expense of others. Each organism, in Darwin's metaphor, struggles to maintain its own organic integrity. The more complex animals seem to experience Gudging from our own case, and reasoning from analogy appropriate and adaptive psychological accompaniments to organic existence. There is a palpable passion for self-preservation. There are desire, pleasure in the satisfaction of desires, acute agony attending injury, frustration, and chronic dread of death. But these experiences are the psychological substance of living. To live is to be anxious about life, to feel pain and pleasure in a fitting mixture, and sooner or later to die. That is the way the system works. If nature as a whole is good, then pain and death are also good."
"Thus, from the war of nature, from famine and death, the most exalted object which we are capable of conceiving, namely, the production of the higher animals, directly follows."
"In their greatest hunger they attack the ranchmen's haystacks, just as far as the stout and high log fences will permit them to go, and many a kind-hearted ranchman has robbed his own haystacks to save the lives of starving and despairing elk."
"I believe I am not interested to know whether Vivisection produces results that are profitable to the human race or doesn't. To know that the results are profitable to the race would not remove my hostility to it. The pains which it inflicts upon unconsenting animals is the basis of my enmity towards it, and it is to me sufficient justification of the enmity without looking further. It is so distinctly a matter of feeling with me, and is so strong and so deeply-rooted in my make and constitution, that I am sure I could not even see a vivisector vivisected with anything more than a sort of qualified satisfaction."
"Some barbarians seize this dog, who so prodigiously excels man in friendship, they nail him to a table, and dissect him living, to show the mezarian veins. You discover in him all the same organs of sentiment which are in yourself. Answer me, machinist, has nature arranged all the springs of sentiment in this animal that he should not feel? Has he nerves to be incapable of suffering? Do not suppose this impertinent contradiction in nature."
"Those who experiment with operations or the use of drugs upon animals, or inoculate them with diseases, so as to be able to bring help to mankind with the results gained, must never quiet any misgivings they feel with the general reflection that their cruel proceedings aim at a valuable result. They must first have considered in each individual case whether there is a real necessity to force upon any animal this sacrifice for the sake of mankind. And they must take the most anxious care to mitigate as much as possible the pain inflicted. How much wrong is committed in scientific institutions through neglect of anaesthetics, which to save time or trouble are not administered! How much, too, through animals being subjected to torture merely to demonstrate to students generally known phenomena! By the very fact that animals have been subjected to experiments, and have by their pain won such valuable results for suffering humanity, a new and special relation of solidarity has been established between them and us. From that springs for each one of us a compulsion to do to every animal all the good we possibly can. By helping an insect when it is in difficulties, I am only attempting to cancel part of man's ever new debt to the animal world."
"Differences in reaction to toxic substances vary considerably between species so that the value of these tests remains doubtful. Although thalidomide was extensively tested on animals in several countries, its terrible properties were not discovered. Conversely, penicillin, the greatest medical discovery of the century, was not extensively tested on animals before its miraculous therapeutic qualities were demonstrated in human patients. If it had been fully tested on animals its high toxicity for guinea pigs would have almost certainly prevented its clinical use."
"Sometimes captured from the great arboreal freedom of their jungle homes, monkeys are closely confined in cages only three or four feet square. … They can never sit or lie down on a flat, soft or yielding surface. Little wonder that by the time they are needed for the knife or the needle they are so crazed or inert that they are no longer representative examples of animal life. Psychologists who study the behaviour of thousands of such creatures annually, rarely make allowances for the fact that their pathetic subjects have been so deprived that they have become more like monsters than animals. Many people who have experienced close affectionate relationships with individuals of other species testify to the considerable potential for emotional and intellectual development that animals have. When properly cared for a pet dog or cat can develop great subtleties of behaviour that the laboratory animal never shows. Those who have been fortunate enough to closely observe unfrightened animals living in the wild are often struck by the complexity and richness of the life they lead. These positive pleasures the laboratory animal never knows; for him the same four white walls and the smell of disinfectant."
"It is idle to spend a single moment in advocating the rights of the lower animals, if such rights do not include a total and unqualified exemption from the awful tortures of vivisection-from the doom of being slowly and mercilessly dismembered, or flayed, or baked alive, or infected with some deadly virus, or subjected to any of the numerous modes of torture inflicted by the Scientific Inquisition."
"Arguments to the effect that it is wrong to cause pain and suffering to animals are often rejected by claiming that animals simply do not suffer. … Ironically, it is precisely upon the assumption that animals do suffer from stress, fear, and pain in a manner similar to humans that the validity of much of animal experimentation rests. Few, if any, conditions are studied as widely in animals as are pain, stress, ulcers, fear, and anxiety."