Quotes About Mammals

In other words, long-lived, late-maturing mammals do more genetic mixing regardless of their size or fecundity than short-lived, early maturing mammals. By Burt's measure, man has thirty crossovers, rabbits ten, and mice three. Tangled-bank theories would predict the opposite.17

Some insignificant and probably nocturnal mammals also survived and experienced in the Paleocene and Eocene a spectacular radiation, producing all the orders and many of the families of the now living mammals.

Hair, to Tillie, meant nothing by way of being a woman's crowning glory. It was merely, as the dictionary so ably states, small horny, fibrous tubes with bulbous roots, growing out of the skins of mammals; and it was meant to be combed down as flat as possible and held in place with countless wire hairpins.

The sea cows lived in the northern North Pacific and ate kelp. Humans exterminated sea cows in 1768.

Terrestrial mammals may be ecosystem-controlling "keystone species," like elephants, or ecosystem engineers, like beavers. Well before humans, mammals dominated much of the land. They

when you're in a rain forest, where the density and diversity of wildlife are the greatest, you will always hear critters entering the soundscape each day in a structured order, almost as if following Darwin's timeline of evolution: insects first, then amphibians, then reptiles, then birds, then mammals." [from an interview in Sun Magazine © 2014]

The old age of lower mammals presents characters similar to those found in man.

The dolphins' evolutionary path is itself a preposterous feat: their predecessors were land mammals that resembled small, hooved wolves.

Giraffe gestation is about thirteen to fifteen months.

We're not the only mammals who are partial to blackberries, far from it. Foxes and badgers will also gobble them up, helping to distribute the seeds, which survive the transit through the gut.

as horripilation but more commonly as getting goose bumps. In furry mammals, it adds a useful layer of insulating air between the hair and the skin, but in humans it has absolutely no physiological benefit and merely reminds us how comparatively bald we are. Horripilation also makes mammalian hair stand up (to make animals look bigger and more ferocious), which is why we get goose bumps when we are frightened or on edge, but of course that doesn't work very well for humans either.

we now know that most viruses infect only bacterial cells and have no effect on us at all. Of the hundreds of thousands of viruses reasonably supposed to exist, just 586 species are known to infect mammals, and of these only 263 affect humans.

There is still quite a lot of life out there, but it is mostly very small. According to a wildlife census by an ecologist at the University of Illinois named V. E. Shelford, a typical ten-square-mile block of eastern American forest holds almost 300,000 mammals—220,000 mice and other small rodents, 63,500 squirrels and chipmunks, 470 deer, 30 foxes, and 5 black bears.

humans are not unique in possessing the neurological substrates that generate consciousness" and that "nonhuman animals, including all birds and mammals, and many other creatures, including octopuses [italics added], also possess these neurological substrates.

Hyenas 'appear to violate the rules of mammalian biology,' Holekamp tells me. 'Studying the oddballs can teach you about the basics,' she explains. 'They allow us to gain insight into what the rules actually are.' And by showing us an alternative way to sociality and intelligence, they help us better understand our own beloved pets, and perhaps even ourselves.

A study published this year in the Proceedings of the National Academy of Sciences found that if you look at the world's mammals by weight, 96 percent of that biomass is humans and livestock; just 4 percent is wild animals.

The object of empathy is understanding. The object of sympathy is the other person's well-being." Whether based on empathy or not, animal succorance is the functional equivalent of human sympathy, expected only in species that know strong attachment. I am not speaking here of anonymous aggregations of fish or butterflies, but the individualized bonding, affection, and fellowship of many mammals and birds.

Neuroscience has discovered that a key part of the brain that processes emotion is the "mammalian brain" or limbic system that we share with other mammals, though not with reptiles and lower life-forms. The warm, emotional bond between a dog and its owner, for example, transcends species. In contrast, any bond between a snake and its owner will be strictly one-way.

The kangaroo has a double penis - one for week days and one for holidays.

Thousands of years ago, humans domesticated every possible large wild mammal species fulfilling all those criteria and worth domesticating, with the result that there have been no valuable additions of domestic animals in recent times, despite the efforts of modern science.

About 15,000 years ago, humans colonised America, wiping out in the process about 75% of its large mammals. Numerous other species disappeared from Africa, from Eurasia, and from the myriad islands around their coasts. The archaeological record of country after country tells the same sad story.

I had learned that a dexterous, opposable thumb stood among the hallmarks of human success. We had maintained, even exaggerated, this important flexibility of our primate forebears, while most mammals had sacrificed it in specializing their digits. Carnivores run, stab, and scratch. My cat may manipulate me psychologically, but he'll never type or play the piano.

We differ from other large mammals, but not much from rodents, in the great variety of habitats we now occupy and in the population densities we have achieved. In

Australia has one of the worst mammalian extinction rates in the world.