Mammals Related Quotes

Humans have evolved to their relatively high state by retaining the immature characteristics of their ancestors. Humans are the most advanced of mammals – although a case could be made for the dolphins – because they seldom grow up. Behavioral traits such as curiosity about the world, flexibility of response, and playfulness are common to practically all young mammals but are usually rapidly lost with the onset of maturity in all but humans. Humanity has advanced, when it has advanced, not because it has been sober, responsible and cautious, but because it has been playful, rebellious, and immature.

Trolls have a longstanding animosity for goats--"Who's that trip-tapping across my bridge!?"--and this led me to think that perhaps trolls are related to goats, since it seems a lot more plausible to me that your relatives would make you insane than some random hooved mammal, however ecologically destructive it might be. What if trolls evolved from goats? Or, no, better yet, what if goats evolved from trolls? Or were domesticated from trolls by human shepherds? And the trolls despise their domesticated cousins as a disgrace to the once-proud troll race, (much as I assume wolves would despise Chihuahuas if they ever gave them much thought) and eat them at every opportunity.

The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo Sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

If the country were open on its borders, new forms would certainly immigrate, and this would also seriously disturb the relations of some of the former inhabitants. Let it be remembered how powerful the influence of a single introduced tree or mammal has been shown to be.

Evolutionary psychology maintains that the emotional and social needs of farm animals evolved in the wild, when they were essential for survival and reproduction. For example, a wild cow had to know how to form close relations with other cows and bulls, or else she could not survive and reproduce. In order to learn the necessary skills, evolution implanted in calves – as in the young of all other social mammals – a strong desire to play (playing is the mammalian way of learning social behaviour). And it implanted in them an even stronger desire to bond with their mothers, whose milk and care were essential for survival.

We shall best understand the probable course of natural selection by taking the case of a country undergoing some physical change, for instance, of climate. The proportional numbers of its inhabitants would almost immediately undergo a change, and some species might become extinct. We may conclude, from what we have seen of the intimate and complex manner in which the inhabitants of each country are bound together, that any change in the numerical proportions of some of the inhabitants, independently of the change of climate itself, would most seriously affect many of the others. If the country were open on its borders, new forms would certainly immigrate, and this also would seriously disturb the relations of some of the former inhabitants. Let it be remembered how powerful the influence of a single introduced tree or mammal has been shown to be. But in the case of an island, or of a country partly surrounded by barriers, into which new and better adapted forms could not freely enter, we should then have places in the economy of nature which would assuredly be better filled up, if some of the original inhabitants were in some manner modified; for, had the area been open to immigration, these same places would have been seized on by intruders. In such case, every slight modification, which in the course of ages chanced to arise, and which in any way favoured the individuals of any of the species, by better adapting them to their altered conditions, would tend to be preserved; and natural selection would thus have free scope for the work of improvement.

If desire were really one to one, self to self, there would never be a problem of infidelity, but desire will always, without confusion, demand a particular class, Caring for a unique object is an illusion, but the feeling must be unique, and though that feeling may not be natural, it is duty. You must love your neighbour like yourself, uniquely. From the personal point of view, sexual desire, because of its impersonal and unchanging character, is a comic contradiction. The relation between every pair of lovers is unique, but in bet they can only do what all mammals do. All the relation in friendship a relationship of spirit, can be unique. In sexual relationship love the only uniqueness can be fidelity.

Mankind is a self-domesticated animal; a mammal; an ape; a social ape; an ape in which the male takes the iniative in courtship and females usually leave the society of their birth; an ape in which men are predators, women herbivorous foragers; an ape in which males are relatively hierarchical, females relatively egalitarian; an ape in which males contribute unusually large amounts of investment in the upbringing of their offspring by provisioning their mates and their children with food, protection, and company; an ape in which monogamous pair bonds are the rule but many males have affairs and occasional males achieve polygamy; an ape in which females mated to low-ranking males often cuckold their husbands in order to gain access to the genes of higher-ranking males; an ape that has been subject to unusually intense mutual sexual selection so that many of the features of the female body (lips, breasts, waists) and the mind of both sexes (songs, competitive ambition, status seeking) are designed for use in competition for mates; an ape that has developed an extraordinary range of new instincts to learn by association, to communicate by speech, and to pass on traditions. But still an ape.

Consider again the mated pair with which we began the chapter. Both partners, as selfish machines, ‘want’ sons and daughters in equal numbers. To this extent they agree. Where they disagree is in who is going to bear the brunt of the cost of rearing each one of those children. Each individual wants as many surviving children as possible. The less he or she is obliged to invest in any one of those children, the more children he or she can have. The obvious way to achieve this desirable state of affairs is to induce your sexual partner to invest more than his or her fair share of resources in each child, leaving you free to have other children with other partners. This would be a desirable strategy for either sex, but it is more difficult for the female to achieve. Since she starts by investing more than the male, in the form of her large, food-rich egg, a mother is already at the moment of conception ‘committed’ to each child more deeply than the father is. She stands to lose more if the child dies than the father does. More to the point, she would have to invest more than the father in the future in order to bring a new substitute child up to the same level of development. If she tried the tactic of leaving the father holding the baby, while she went off with another male, the father might, at relatively small cost to himself, retaliate by abandoning the baby too. Therefore, at least in the early stages of child development, if any abandoning is going to be done, it is likely to be the father who abandons the mother rather than the other way around. Similarly, females can be expected to invest more in children than males, not only at the outset, but throughout development. So, in mammals for example, it is the female who incubates the foetus in her own body, the female who makes the milk to suckle it when it is born, the female who bears the brunt of the load of bringing it up and protecting it. The female sex is exploited, and the fundamental evolutionary basis for the exploitation is the fact that eggs are larger than sperms.

These waves, predicted by Einstein, are ripples moving at the speed of light across the fabric of space-time, and are generated by severe gravitational disturbances, such as the collision of two black holes. And that’s exactly what was observed. The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

It is spring 2007, and the block-long security lines into the Smithsonian Institution’s National Museum of American History (NMAH) are missing now while it is closed for renovation. The once controversial and “technically superb” exhibition Science in American Life is due to be phased out. The hot new museum exhibit is at the National Museum of Natural History’s (NMNH) Kenneth E. Behring Hall of Mammals. There, entering this multimedia, multisensory immersive installation, we are invited to a “Mammal Family Reunion—Come meet your relatives!”—in a savvy response to antievolution religious activism.

And that’s exactly what was observed. The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

Dolphins... Yeah, dolphins... A lot of people like dogs, cats, and - for some reason I've never been able to fathim - even snakes and toads. But dolphins? Everybody, and I mean EVERYBODY loves bloody dolphins. Don't they? Goes way back, to the ancient Greeks, when shipwrecked sailors would wash up on beaches yammering out crazy stories of how they was staring down a watery grave, when out of nowhere, flipper shows up and pushes them safely back to the shore. Heartarming - and say what you will about aquatic mammal public relations, but that was one ispired move, because here we are two thousand years later and everybody still loves them bloody dolphins. What you don't hear are the other stories, the ones where flipper's watching poor Artemides doggy paddling away and inhaling the warm, salty waters of the Adriatic... and flipper things, "Yeah, sure I could save him, but sod that for a can of sardines" and instead of pushing Artemides back to shore, flipper pushes the poor sod out to sea... in the immortal words of Sir Johnny of the Cash, "Just to watch him die..." See, moral is, if you're gonna be a bastard, be like a dolphin - think big picture, protect your image and above all, leave no trace. Because in the bloodshot, bleary eyes of the world, once you're a bastard, you're always a bastard.

One article on reproductive strategies was titled "Sneaky Fuckers." Kya laughed. As is well known, the article began, in nature, usually the males with the most prominent secondary sexual characteristics, such as the biggest antlers, deepest voices, broadest chests, and superior knowledge secure the best territories because they have fended off weaker males. The females choose to mate with these imposing alphas and are thereby inseminated with the best DNA around, which is passed on to the female's offspring- one of the most powerful phenomena in the adaptation and continuance of life. Plus, the females get the best territory for their young. However, some stunted males, not strong, adorned, or smart enough to hold good territories, possess bags of tricks to fool the females. They parade their smaller forms around in pumped-up postures or shout frequently- even if in shrill voices. By relying on pretense and false signals, they manage to grab a copulation here or there. Pint-sized male bullfrogs, the author wrote, hunker down in the grass and hide near an alpha male who is croaking with great gusto to call in mates. When several females are attracted to his strong vocals at the same time, and the alpha is busy copulating with one, the weaker male leaps in and mates one of the others. The imposter males were referred to as "sneaky fuckers." Kya remembered, those many years ago, Ma warning her older sisters about young men who overrevved their rusted-out pickups or drove jalopies around with radios blaring. "Unworthy boys make a lot of noise," Ma had said. She read a consolation for females. Nature is audacious enough to ensure that the males who send out dishonest signals or go from one female to the next almost always end up alone. Another article delved into the wild rivalries between sperm. Across most life-forms, males compete to inseminate females. Male lions occasionally fight to the death; rival bull elephants lock tusks and demolish the ground beneath their feet as they tear at each other's flesh. Though very ritualized, the conflicts can still end in mutilations. To avoid such injuries, inseminators of some species compete in less violent, more creative methods. Insects, the most imaginative. The penis of the male damselfly is equipped with a small scoop, which removes sperm ejected by a previous opponent before he supplies his own. Kya dropped the journal on her lap, her mind drifting with the clouds. Some female insects eat their mates, overstressed mammal mothers abandon their young, many males design risky or shifty ways to outsperm their competitors. Nothing seemed too indecorous as long as the tick and the tock of life carried on. She knew this was not a dark side to Nature, just inventive ways to endure against all odds. Surely for humans there was more.

For example, measles virus is most closely related to the virus causing rinderpest. That nasty epidemic disease affects cattle and many wild cud-chewing mammals, but not humans. Measles in turn doesn’t afflict cattle. The close similarity of the measles virus to the rinderpest virus suggests that the latter transferred from cattle to humans and then evolved into the measles virus by changing its properties to adapt to us. That transfer is not at all surprising, considering that many peasant farmers live and sleep close to cows and their feces, urine, breath, sores, and blood. Our intimacy with cattle has been going on for the 9,000 years since we domesticated them—ample time for the rinderpest virus to discover us nearby. As

The more basic reason is that the human being gets his original experiences of being a self out of his relatedness to other persons, and when he is alone, without other persons, he is afraid he will lose this experience of being a self. Man, the biosocial mammal, not only is dependent on other human beings such as his father and mother for his security during a long childhood; he likewise receives his consciousness of himself, which is the basis of his capacity to orient himself in life, from these early relationships. These important points we will discuss more thoroughly in a later chapter—here we wish only to point out that part of the feeling of loneliness is that man needs relations with other people in order to orient himself.

In the period following birth, the human brain, unlike that of the chimpanzee, continues to grow at the same rate as in the womb. There are times in the first year of life when, every second, multiple millions of nerve connections, or synapses, are established. Three-quarters of our brain growth takes place outside the womb, most of it in the early years. By three years of age, the brain has reached 90 percent of adult size, whereas the body is only 18 percent of adult size. This explosion in growth outside the womb gives us a far higher potential for learning and adaptability than is granted to other mammals. […] Greater reward demands greater risk. Outside the relatively safe environment of the womb, our brains-in-progress are highly vulnerable to potentially adverse circumstances.

A modern example of this stunning knowledge of nature that Einstein has gifted us, comes from 2016, when gravitational waves were discovered by a specially designed observatory tuned for just this purpose.† These waves, predicted by Einstein, are ripples moving at the speed of light across the fabric of space-time, and are generated by severe gravitational disturbances, such as the collision of two black holes. And that’s exactly what was observed. The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

It turns out that the eastern U.S. founder crops were four plants domesticated in the period 2500–1500 B.C., a full 6,000 years after wheat and barley domestication in the Fertile Crescent. A local species of squash provided small containers, as well as yielding edible seeds. The remaining three founders were grown solely for their edible seeds (sunflower, a daisy relative called sumpweed, and a distant relative of spinach called goosefoot). But four seed crops and a container fall far short of a complete food production package. For 2,000 years those founder crops served only as minor dietary supplements while eastern U.S. Native Americans continued to depend mainly on wild foods, especially wild mammals and waterbirds, fish, shellfish, and nuts. Farming did not supply a major part of their diet until the period 500–200 B.C., after three more seed crops (knotweed, maygrass, and little barley) had been brought into cultivation. A

Even the preceding and touch longer period between the first mammal and the first man, some twenty-five millions of terrestrial years, seems now inconsiderable. The whole of it, together with the age of the First Men, may be said to lie half-way between the formation of the planets, two thousand million years earlier, and their final destruction, two thousand million years later, Taking a still wider view, we see that this aeon of four thousand million years is itself no more than a moment in comparison with the sun's age. And before the birth of the sun the stuff of this galaxy had already endured for aeons as a nebula. Yet even those aeons look brief in relation to the passage of time before the myriad great nebula themselves, the future galaxies, condensed out of the all-pervading mist in the beginning. Thus the whole duration of humanity, with its many sequent species and its incessant downpour of generations, is but a flash in the lifetime of the cosmos.

A recent comparative study looked at the neuropil volume in different areas of humans’ and chimps’ brains.43 Neuropil comprises the brain areas that are made of connections: a mixture of axons, dendrites, synapses, and more. The prefrontal cortex—the brain area in humans involved in decision making, problem solving, mental state attribution, and temporal planning—has a greater percentage of neuropil than is found in chimp brains, and the dendrites in this region have more spines with which they connect to other neurons than do other parts of the brain. This anatomical finding suggests that the connectivity patterns of the prefrontal neurons may contribute to what is different about our brains. Interestingly, corvids have a relatively larger forebrain than most other birds, especially the areas that are thought to be analogous to the prefrontal cortex of mammals.44 Yet, as we shall see, while this way of thinking may explain increased abilities, it is not going to get us to the goal of understanding how consciousness is enabled.

Unchopping a Tree. Start with the leaves, the small twigs, and the nests that have been shaken, ripped, or broken off by the fall; these must be gathered and attached once again to their respective places. It is not arduous work, unless major limbs have been smashed or mutilated. If the fall was carefully and correctly planned, the chances of anything of the kind happening will have been reduced. Again, much depends upon the size, age, shape, and species of the tree. Still, you will be lucky if you can get through this stages without having to use machinery. Even in the best of circumstances it is a labor that will make you wish often that you had won the favor of the universe of ants, the empire of mice, or at least a local tribe of squirrels, and could enlist their labors and their talents. But no, they leave you to it. They have learned, with time. This is men's work. It goes without saying that if the tree was hollow in whole or in part, and contained old nests of bird or mammal or insect, or hoards of nuts or such structures as wasps or bees build for their survival, the contents will have to repaired where necessary, and reassembled, insofar as possible, in their original order, including the shells of nuts already opened. With spider's webs you must simply do the best you can. We do not have the spider's weaving equipment, nor any substitute for the leaf's living bond with its point of attachment and nourishment. It is even harder to simulate the latter when the leaves have once become dry — as they are bound to do, for this is not the labor of a moment. Also it hardly needs saying that this the time fro repairing any neighboring trees or bushes or other growth that might have been damaged by the fall. The same rules apply. Where neighboring trees were of the same species it is difficult not to waste time conveying a detached leaf back to the wrong tree. Practice, practice. Put your hope in that. Now the tackle must be put into place, or the scaffolding, depending on the surroundings and the dimension of the tree. It is ticklish work. Almost always it involves, in itself, further damage to the area, which will have to be corrected later. But, as you've heard, it can't be helped. And care now is likely to save you considerable trouble later. Be careful to grind nothing into the ground. At last the time comes for the erecting of the trunk. By now it will scarcely be necessary to remind you of the delicacy of this huge skeleton. Every motion of the tackle, every slightly upward heave of the trunk, the branches, their elaborately reassembled panoply of leaves (now dead) will draw from you an involuntary gasp. You will watch for a lead or a twig to be snapped off yet again. You will listen for the nuts to shift in the hollow limb and you will hear whether they are indeed falling into place or are spilling in disorder — in which case, or in the event of anything else of the kind — operations will have to cease, of course, while you correct the matter. The raising itself is no small enterprise, from the moment when the chains tighten around the old bandages until the boles hands vertical above the stump, splinter above splinter. How the final straightening of the splinters themselves can take place (the preliminary work is best done while the wood is still green and soft, but at times when the splinters are not badly twisted most of the straightening is left until now, when the torn ends are face to face with each other). When the splinters are perfectly complementary the appropriate fixative is applied. Again we have no duplicate of the original substance. Ours is extremely strong, but it is rigid. It is limited to surfaces, and there is no play in it. However the core is not the part of the trunk that conducted life from the roots up to the branches and back again. It was relatively inert. The fixative for this part is not the same as the one for the outer layers and the bark, and if either of these is involved

Sexual reproduction is thus a costly investment that has to pay for itself in the short run. The details of theory and experiment on this topic are fascinating (see, e.g., Maynard Smith, 1978; Ridley, 1993), but for our purposes a few highlights from the currently front-running theory are most instructive: sex (in vertebrates like us, at least) pays for itself by making our offspring relatively inscrutable to the parasites we endow them with from birth. Parasites have short lifespans compared with their hosts, and typically reproduce many times during their host’s lifetime. Mammals, for instance, are hosts to trillions of parasites. (Yes, right now, no matter how healthy and clean you are, there are trillions of parasites of thousands of different species inhabiting your gut, your blood, your skin, your hair, your mouth, and every other part of your body. They have been rapidly evolving to survive against the onslaught of your defenses since the day you were born.) Before a female can mature to reproductive age, her parasites evolve to fit her better than any glove. (Meanwhile, her immune system evolves to combat them, a standoff—if she is healthy—in an ongoing arms race.) If she gave birth to a clone, her parasites would leap to it and find themselves at home from the outset. They would be already optimized to their new surroundings. If instead she uses sexual reproduction to endow her offspring with a mixed set of genes (half from her mate), many of these genes—or, more directly, their products, in the offspring’s internal defenses—will be alien or cryptic to the ship-jumping parasites. Instead of home sweet home, the parasites will find themselves in terra incognita. This gives the offspring a big head start in the arms race.

Ironically, the same scientific disciplines which shape our milk machines and egg machines have lately demonstrated beyond reasonable doubt that mammals and birds have a complex sensory and emotional make-up. They not only feel physical pain, but can also suffer from emotional distress. Evolutionary psychology maintains that the emotional and social needs of farm animals evolved in the wild, when they were essential for survival and reproduction. For example, a wild cow had to know how to form close relations with other cows and bulls, or else she could not survive and reproduce. In order to learn the necessary skills, evolution implanted in calves – as in the young of all other social mammals – a strong desire to play (playing is the mammalian way of learning social behaviour). And it implanted in them an even stronger desire to bond with their mothers, whose milk and care were essential for survival. What happens if farmers now take a young calf, separate her from her mother, put her in a closed cage, give her food, water and inoculations against diseases, and then, when she is old enough, inseminate her with bull sperm? From an objective perspective, this calf no longer needs either maternal bonding or playmates in order to survive and reproduce. But from a subjective perspective, the calf still feels a very strong urge to bond with her mother and to play with other calves. If these urges are not fulfilled, the calf suffers greatly. This is the basic lesson of evolutionary psychology: a need shaped in the wild continues to be felt subjectively even if it is no longer really necessary for survival and reproduction. The tragedy of industrial agriculture is that it takes great care of the objective needs of animals, while neglecting their subjective needs.

Human beings consist of a complex composite, an aggregate of several material elements not shared by inanimate objects. A person consists of feelings, thoughts, and experiences, and every person apprehends how they stand in relation to other people and nature. Matching other people, I am composed of a mind, a thinking contraption that is capable of registering pleasurable and painful physical sensations. We each maintain selected degrees of indifference and consciousness awareness. We each hold a range of cognitive mental perceptions, instinctual fears and desires, emotional impulses, mental formulations, individual dispositions, and recognizable personality traits. Most people also profess to embrace moral beliefs and adhere to various ethical precepts. Other mammals, reptiles, birds, insects, and other forms of cellular life might share some, but not all of these distinctive qualities. No other life form possesses all these mental qualities collected into a single aggregate.

Both are profound acts of selflessness that distinguish us from all other mammals, including the higher primates that we are so closely related to.

I recently visited New Zealand and learned that it has a very diverse ecosystem. Until the arrival of humans, it was populated almost entirely by birds. They occupied every niche in the food chain, from tiny ɻightless things to predators so enormous they could snatch a hundred-pound prey for dinner. For millions of years, birds dominated their man-less, mammal-less world, a universe of feathers, beaks, and talons, knowing of no other form of higher life. The birds acquired a host of abilities and natural defenses optimal for their environment. But then in the thirteenth century, while the Europeans were still busy with their crusades, Polynesian explorers came, and with them came rats—with fur instead of feathers, teeth instead of beaks, and tiny paws instead of fearsome talons. The defense mechanisms that worked well against other birds failed against the rats. Small ɻightless birds who, when sensing danger, would remain perfectly still to avoid being spotted by predators ɻying overhead, would do the same when encountering a rat. Fighting for its life, in its passive way, the little bird focused its every eʃort on not moving a single muscle—only to be gobbled up where it stood. The scientific term for animals like the little bird who had not encountered rats or humans is naïve. I find this charming, as if the little bird existed in a moral universe of which his New Zealand was a kind of Eden, its inhabitants living a peaceful existence disrupted only by the victimization of a cunning intruder, preying on their relative innocence. I often think the people I encounter are naïve, but only because they may never have encountered someone quite like me. Sociopaths see things that no one else does because they have diʃerent expectations about the world and the people in it. While you and observer from certain harsh truths, the sociopath remains undistracted. We are like rats on an island of birds. I have never identified with the little bird, trapped by fear and an instinct for passivity, the wide-eyed victim of circumstance. I have never pined for an Eden of peace on earth and goodwill toward men. I am the rat, and I will take every advantage I can without apology or excuse. And there are others like me.

As a result of the War on Bacteria, our bacterial context is rapidly shifting. One bacterium formerly ubiquitous in humans, Helicobacter pylori, which resides in the stomach, is now found in fewer than 10 percent of American children and may be headed toward extinction.62 H. pylori has been associated with humans for at least 60,000 years, and there is evidence that closely related bacteria have lived in the stomachs of mammals since their emergence 150 million years ago.

ass1 n. 1 a hoofed mammal of the horse family, which is typically smaller than a horse and has longer ears and a braying call. Genus Equus, family Equidae: E. africanus of Africa, which is the ancestor of the domestic ass or donkey, and E. hemionus of Asia. (in general use) a donkey. 2 BRITISH INFORMAL a foolish or stupid person: that ass of a young man. make an ass of oneself INFORMAL behave in a way that makes one look foolish or stupid. Old English assa, from a Celtic word related to Welsh asyn, Breton azen, based on Latin asinus. ass2 n. NORTH AMERICAN VULGAR SLANG a person's buttocks or anus. [mass noun] women regarded as a source of sexual gratification. oneself (used in phrases for emphasis). bust one's ass try very hard to do something. chew (someone's) ass reprimand (someone) severely. drag (or tear or haul) ass hurry or move fast. get your ass in (or into) gear hurry.

...humans are unusually fat compared to most mammals, and there is good reason to believe that ever since brains expanded and development slowed down in archaic Homo, we also became relatively fat.

FAMILY VALUES If you start watching pigeons, one of the first things you’ll notice is that you never see a chick. Like some mythical beast, these birds reveal themselves to humans only after reaching maturity. There are two good reasons for this: First, pigeons are good at hiding their nests; and second, the young birds—called squabs—stay in the nest until they lose the obvious indicators of youth. They are able to do this because mother and father pigeon work together to provide for their young. This equality in parenting extends to milk production: Both males and females secrete a cheesy yellow milk into the crop, a food-storage pouch partway down the throat. I had thought that milk belonged exclusively to mammals; it’s our defining characteristic, so important that we are named for it—“mammal” comes from the Latin mamma, meaning breast. Pigeons are more closely related to dinosaurs than mammals. Like breast milk, pigeon milk contains antibodies and immune-system regulators. Like breast milk, it is stimulated by the hormone prolactin; in fact, scientists discovered prolactin while studying pigeons. Despite the similarities, mammal milk isn’t a relative of pigeon milk. Instead, it is an example of

Among primates, males are much more likely than females to engage in aggression-aggressive coalitions are sexually dimorphic in mammals-because it gives males a greater chance of reproductive success.

But civilized human beings are alarmingly ignorant of the fact that they are continuous with their natural surroundings. It is as necessary to have air, water, plants, insects, birds, fish, and mammals as it is to have brains, hearts, lungs, and stomachs. The former are our external organs in the same way that the latter are our internal organs. If then, we can no more live without the things outside than without those inside, the plain inference is that the words “I” and “myself ” must include both sides. The sun, the earth, and the forests are just as much features of your own body as your brain. Erosion of the soil is as much a personal disease as leprosy, and many “growing communities” are as disastrous as cancer.

This is very different from mice and humans, as we saw in the last chapter. For us and our rodent relatives, the only way to generate live young is by having DNA from both a mother and a father. It’s tempting to speculate that stick insects are highly unusual but they’re not. We mammals are the exceptions. Insects, fish, amphibians, reptiles and even birds all have a few species that can reproduce parthenogenetically. It’s we mammals who can’t. It’s our class in the animal kingdom which is the odd one out, so it makes sense to ask why this is the case.

Horvitz and his colleagues discovered several genes that coded for the effectors of cell death in nematodes—the death genes. Their findings were fascinating in their own right, but by far the most unexpected and important discovery was that there were exact equivalents of the death genes in flies, mammals, and even plants. Cancer researchers had already identified some of these genes at the time, but why or how they were involved in cancer was still unknown. The link with nematodes made their function clear, while giving another demonstration of the fundamental unity of life. Not only were the human genes unambiguously related to the nematode genes, but also they could even be genetically engineered to replace the nematode genes in the worms themselves, where they worked equally well! Mutations that disabled any of the death genes prevented the nematodes from losing their 131 cells by apoptosis as usual. The implications for cancer were plain: if the same mutations had a similar effect in people, then incipient cancer cells would likewise fail to commit suicide, and would instead continue to proliferate to form a tumour.

ANIMAL BITES Do not attempt to pet, handle or feed any animal, with the exception of domestic animals known to be free of any infectious disease. Most animal injuries are directly related to a person’s attempt to touch or feed the animal. Treat any bite or scratch by a mammal (including bats) promptly by thoroughly cleansing with large amounts of soap and water, followed by application of an antiseptic such as iodine or alcohol, and contact a local health authority.

that the prevalence of hierarchy is not limited to human societies. There are clear hierarchies among most social birds and mammals, including those species most nearly related to human beings. Farmers have always known that barnyard flocks of hens develop a ‘pecking order’ in which each hen has a rank, allowing her to peck at and drive away from food birds below her in rank, but to be pecked by, and forced to give up food to, those above her.

If a species has cojones grandes, you can bet that males have frequent ejaculations with females who sleep around. Where the females save it for Mr. Right, the males have smaller testes, relative to their overall body mass. The correlation of slutty females with big balled males appears to apply not only to humans and other primates, but to many mammals, as well as to birds, butterflies, reptiles, and fish.

But for now it’s goodbye to the beaches, and indeed many a celebrated island of yore now lies deep under the waves. An entire world and way of life has disappeared with these fabled places, a lifeway that went right back to the beginning of the species in south and east Africa, where the earliest humans were often intimately involved with the sea. That wet, sandy, tidal, salty, sun-flecked, beautiful beach life: all gone, along with so much else, of course; animals, plants, fish. It’s part of the mass extinction event they are still struggling to end, to escape. So much has been lost that will never come back again, that the loss of the joy of the relatively few humans who were lucky enough to live on the strand, who combed the beaches, and fished, and rode the waves, and lay in the sun – that’s nothing much to grieve for, given everything else that has been lost, all the suffering, all the hunger, all the death, all the extinctions. Most of the mammal species are gone. Still, it was a way of life much beloved, and still remembered in art and song, image and story – still legendary, still a lost golden age, vibrating at some level below thought, there in their salty blood and tears, in the long, curled waves of DNA that still break inside them all.

You watch, listen, talk, sniff and wonder. You are there as a thinking, experiencing creature, and so you take notice. At the same time, you are in the presence of other thinking, experiencing creatures. You are noticed.” “..and there are all the ordinary living things—the trees, birds, insects, marsupials and mammals, fish, amphibians, reptiles, trees, shrubs, grasses. To some of these you are related. So, you are in the presence of your relations, and thus you are enmeshed in reciprocities, obligations, benefits and shared objectives. You are not alone.

Children need a great deal of free play to thrive. It’s an imperative that’s evident across all mammal species. The small scale challenged and setbacks that happen during play are like an inoculation that prepares children to face much larger challenges later.

The whole reason lipstick and blush came into being was that when a woman is sexually aroused, her lips and cheeks get redder. The first women to wear lipstick were prostitutes, to better attract clients. And eye makeup makes eyes stand out more, right? This had to be related to the fact that mammal babies have proportionally oversized eyes. So, what—were women trying to make themselves look like sexually aroused babies? Why? Why was this the norm? Why was I the freak for not doing it? Society was really fucked up.

But in reading the actual declaration, I calmed down, because it is a reasonable document. It doesn’t actually claim animal consciousness, whatever that is. It only says that given the similarities in behavior and nervous systems between humans and other large-brained species, there is no reason to cling to the notion that only humans are conscious. As the document puts it, “The weight of evidence indicates that humans are not unique in possessing the neurological substrates that generate consciousness.” I can live with that. As you can see from this chapter, there is sound evidence that mental processes associated with consciousness in humans, such as how we relate to the past and future, occur in other species as well. Strictly speaking, this doesn’t prove consciousness, but science is increasingly favoring continuity over discontinuity. This is certainly true for comparisons between humans and other primates, but extends to other mammals and birds, especially since bird brains turn out to resemble those of mammals more than previously thought. All vertebrate brains are homologous. Although we cannot directly measure consciousness, other species show evidence of having precisely those capacities traditionally viewed as its indicators. To maintain that they possess these capacities in the absence of consciousness introduces an unnecessary dichotomy. It suggests that they do what we do but in fundamentally different ways. From an evolutionary standpoint, this sounds illogical. And logic is one of those other capacities we pride ourselves on.

As brain size increased over the last two million years, infants had to be born relatively earlier in their development so their heads could fit through the birth canal. All human babies are born prematurely relative to other primate babies. Human babies are less competent and more vulnerable at birth than almost any other mammal. This may have tipped the balance for men, making assistance to their own offspring more beneficial to their genes than seeking new mates. The sexual novelty-seeking characteristic of all male mammals was an ancient instinct, not easy to overcome. By evolving an appreciation of the cognitive novelties offered by good conversation with an established partner, men may have muted their obsession with the physical novelties of other women.

Obviously, under primitive planetary conditions — finite space and finite resources — the illth was perceived as necessary to protect the wealth. Territorial politics are much the same among domesticated primates as among other mammals; the primates are just smarter at building more omni-lethal weapons faster. This was originally a survival trait, an Evolutionary Relative Success, because primates are born without the physiological, inbuilt weaponry (lethal teeth, claws, horns etc.) of other mammals.

...the conceptual commitment account is actually quite psychological. It is far from drawing an airtight distinction. Quite often, whether or not a person considers a subject to be in a predicate will be relative to that person's knowledge, intuitions, personality, etc.. For example, it was common in the ancient world (and is still common in non-scientific cultures) to classify whales with fish. Such a person would consider 'A whale is a fish' to be analytic--the concept of fish includes whale. A Kantian might reply that this mistaken evaluation is due to the person's ignorance. A biologist would even claim that the statement, 'A whale is a fish' is analytically false. But we must not make such hasty judgements. After all, if the person is not working with scientific definitions of 'fish' or 'mammal,' he has not necessarily misclassified the whale. After all, there are obvious analogies between whales and fish. If somone who has not taken a modern biology class defines 'fish' simply to be an aquatic animal, he is perfectly justified in including whales in the category of fish. In other words, for him, according to his vocabulary and definitions, the truth is analytic. Thus, what might be analytic for one person could be synthetic for another and Kant has given no way to resolve such disputes.

On a hot day a relatively fit human will beat every other mammal in a distance race—lions, tigers, bears, dogs, etc.*1 As Lieberman explained in

Norepinephrine: The Wake-Up Neurotransmitter One of norepinephrine’s effects on the brain is to sharpen attention. As we saw earlier, norepinephrine (aka noradrenaline) can function as both a neurotransmitter and a hormone. When we perceive stress and activate the fight-or-flight response, the brain produces bursts of norepinephrine, triggering anxiety. But sustained and moderate secretion can also produce a beneficial result in the form of heightened attention, even euphoria, and meditation has been shown to produce a rise in norepinephrine in the brain. A modest dose of norepinephrine is also associated with reduced beta brain waves. 5.11. Norepinephrine: your wake-up molecule. Notice the paradox here. Norepinephrine is associated with both anxiety and attentiveness. How do you get enough to be alert, but not so much you’re stressed? Surrender is the key. Steven Kotler, co-author of Stealing Fire, says that stress neurochemicals like norepinephrine actually prime the brain for flow states. At first, the meditator is frustrated by Monkey Mind. But if she surrenders, despite the perpetual self-chatter of the DMN, she enters the next phase of flow, which is focus. She has hacked her biology, using the negative experience of mind wandering as a springboard to flow. Norepinephrine’s molecular structure is similar to its cousin, epinephrine. While epinephrine works on a number of sites in the body, norepinephrine works exclusively on the arteries. When both dopamine and norepinephrine are present in the brain at the same time, they amplify focus. Attention becomes sharp, while perception is enhanced. Staying alert is a key function of the brain’s attention circuit, which keeps you focused on the object of your meditation and counteracts the wandering mind. It also stops you from becoming drowsy, an occupational hazard for meditators. That’s because pleasure neurotransmitters such as serotonin and melatonin (for which serotonin is the precursor) can put you to sleep if not balanced by alertness-producing norepinephrine. Again, the ratios are the key. Oxytocin: The Hug Drug 5.12. Oxytocin: your cuddle molecule. Oxytocin is produced by the hypothalamus, part of the brain’s limbic system. When activated, neurons in the hypothalamus stimulate the pituitary gland to release oxytocin into the bloodstream. So even though oxytocin is produced in the brain, it has effects on the body as well, giving it the status of a hormone. It is one of a group of small protein molecules called neuropeptides. A closely related neuropeptide is vasopressin. All mammals produce some variant of these neuropeptides. Oxytocin promotes bonding between humans. It is responsible for maternal feelings and physically prepares the female body for childbirth and nursing. It is generated through physical touch but also by emotional intimacy. Oxytocin also facilitates generosity and trust within a group. Oxytocin is the hormone associated with the long slow waves of delta. A researcher hooking subjects up to an EEG found that touch stimulated greater amounts of delta, with certain regions of the skin being more sensitive. The biggest effect was produced by tapping the cheek, as we do in EFT. It produced an 800% spike in delta.

Social mammals’ first response to extreme cold is piloerection, the bodily reaction underlying goose bumps. Piloerection causes the skin to bunch, rendering it less porous to the cold. Visible piloerection signals to others to huddle, initiating proximity and tactile contact, which in humans takes the form of supportive touch and even embrace. Proximity and tactile contact activate a neurochemistry of connection. This includes the release of oxytocin, a neurochemical that travels through the brain and body promoting openness to others, and activation of the vagus nerve. When our mammalian relatives encountered vast and perilous mysteries—numbing cold, roaring water, sudden gusts of wind, thunderous deluges, and lightning—they piloerected, and found warmth and strength in drawing closer to others.

The gravitational waves of the first detection were generated by a collision of black holes in a galaxy 1.3 billion light-years away, and at a time when Earth was teeming with simple, single-celled organisms. While the ripple moved through space in all directions, Earth would, after another 800 million years, evolve complex life, including flowers and dinosaurs and flying creatures, as well as a branch of vertebrates called mammals. Among the mammals, a sub-branch would evolve frontal lobes and complex thought to accompany them. We call them primates. A single branch of these primates would develop a genetic mutation that allowed speech, and that branch—Homo sapiens—would invent agriculture and civilization and philosophy and art and science. All in the last ten thousand years. Ultimately, one of its twentieth-century scientists would invent relativity out of his head, and predict the existence of gravitational waves. A century later, technology capable of seeing these waves would finally catch up with the prediction, just days before that gravity wave, which had been traveling for 1.3 billion years, washed over Earth and was detected. Yes, Einstein was a badass.

What’s interesting is that REM sleep appeared relatively late in the game of evolution; all animals display NREM sleep, but only birds and nonaquatic mammals experience REM, although recent studies suggest that a REM sleep–like state may exist in nonavian reptiles.

Because it was part of old Gondwana and because it is insular and was isolated for tens of millions of years, New Zealand has a quirky evolutionary history. There seems to have been no mammalian stock from which to evolve on the Gondwanan fragment, and so, until the arrival of humans, there were no terrestrial mammals, nor were there any of the curious marsupials of nearby Australia—no wombats or koalas or kangaroos, no rodents or ruminants, no wild cats or dogs. The only mammals that could reach New Zealand were those that could swim (like seals) or fly (like bats), and even then there are questions about how the bats got there. Two of New Zealand’s three bat species are apparently descended from a South American bat, which, it is imagined, must have been blown across the Pacific in a giant prehistoric storm. Among New Zealand’s indigenous plants and animals are a number of curious relics, including a truly enormous conifer and a lizard-like creature that is the world’s only surviving representative of an order so ancient it predates many dinosaurs. But the really odd thing about New Zealand is what happened to the birds. In the absence of predators and competitors, birds evolved to fill all the major ecological niches, becoming the “ecological equivalent of giraffes, kangaroos, sheep, striped possums, long-beaked echidnas and tigers.” Many of these birds were flightless, and some were huge. The largest species of moa—a now extinct flightless giant related to the ostrich, the emu, and the rhea—stood nearly twelve feet tall and weighed more than five hundred pounds. The moa was an herbivore, but there were also predators among these prehistoric birds, including a giant eagle with claws like a panther’s. There were grass-eating parrots and flightless ducks and birds that grazed like sheep in alpine meadows, as well as a little wren-like bird that scampered about the underbrush like a mouse. None of these creatures were seen by the first Europeans to reach New Zealand, for two very simple reasons. The first is that many of them were already extinct. Although known to have survived long enough to coexist with humans, all twelve species of moa, the Haast’s eagle, two species of adzebills, and many others had vanished by the mid-seventeenth century, when Europeans arrived. The second is that, even if there had still been moas lumbering about the woods, the European discoverers of New Zealand would have missed them because they never actually set foot on shore.

All species of primates play. Among these, it’s our closest relatives, chimpanzees and bonobos, that are the most playful. Though it was once believed that only mammals played, researchers have observed playful behavior in surprising corners of the animal kingdom: octopuses playing with Legos, turtles batting around balls, and crocodiles giving each other piggyback rides. Our truest human expression of joy, laughter, likely emerged from play.

WHAT fire meant for hominids and ultimately for the rest of the natural world is presaged vividly by a cave excavation in South Africa.1 At the deepest and therefore oldest strata, there are no carbon deposits and hence no fire. Here one finds full skeletal remains of large cats and fragmentary bone shards—bearing tooth marks—of many fauna, among which is Homo erectus. At a higher, later stratum, one finds carbon deposits signifying fire. Here, there are full skeletal remains of Homo erectus and fragmentary bone shards of various mammals, reptiles, and birds, among which are a few gnawed bones of large cats. The change in cave “ownership” and the reversal in who was apparently eating whom testify eloquently to the power of fire for the species that first learned to use it. At the very least, fire provided warmth, light, and relative safety from nocturnal predators as well as a precursor to the domus or hearth.

On this scale, the human brain is 7.5 times bigger than the brain of a typical mammal weighing as much as we do, with all other mammals having smaller encephalization quotients. Why the size of say, the prefrontal cortex, should relate to the size

We evolved, and continue to exist, in a physical world that assaults us with threats, but we also depend on a strong sense of morality and social justice to keep our communities intact. And intact communities are far more likely to survive than fragmented ones. When a woman gives shelter to a family because she doesn’t want to raise her children in a world where people can be massacred because of their race or their beliefs, she is taking a huge risk but also promoting the kind of moral thinking that has clearly kept hominid communities glued together for hundreds of thousands of years. It is exactly the same kind of altruistic choice—with all the attendant risks and terrors—that a man makes when he runs into a burning building to save someone else’s children. Both are profound acts of selflessness that distinguish us from all other mammals, including the higher primates that we are so closely related to.

Compared with all the other animals, humans are the ones doing all the change. When you look at our species’ behavior relative to the others, we’re the change animals. This seems to be the outcome when our seeking systems (which other mammals share) teams up with the prefrontal cortex (the new part of our brain that lets us simulate the future, which other mammals don’t share).9 Put these two parts of the brains together, and humans are biologically wired for innovation and change.

Looking back at the knowledge economies discussed earlier, we can recognize that the dynamic coupling of human societies and the Earth system not only depended on the generation of knowledge, but enhanced, in turn, the significance of that generation. In a process extending over millennia, scientific knowledge eventually became a crucial component of economic growth; it is now becoming no less important in coping with its consequences. Substantial anthropogenic change on a global scale was evidently already characteristic of the Holocene and the late Pleistocene, from the human-induced extinction of great mammals via Neolithization and urbanization to the Scientific and Industrial Revolutions. What characterizes the Anthropocene is the need to actively prevent the Earth system from transgressing planetary boundaries. The emergence of this need is closely related to the cascade of evolutionary processes described above. Just as cultural evolution started as a side-show of biological evolution before it became the conditio humana (the essential condition of human life), epistemic evolution, that is, the growing dependence of human societies on knowledge economies producing scientific knowledge, was, for a long time, no more than a tangential aspect of cultural evolution. But with the onset of the Anthropocene, the survival of human culture as we know it hinges on this.

is a ferret. It can be an adorable house pet. The ferret is a warm-blooded mammal. It has a long body but with very short legs. It is close relatives with mink and weasels. Ferret is derived from the Latin word “furonem.” The word means thief. This is a good name because it gladly steals anything it can hold with its paws.  It then hides the stolen object inside its home.