Zitat des Tages über Säugetiere / Mammals:
For nearly 2 million years, our ancestors survived and thrived and spread across the planet because they could run other mammals into heat exhaustion.
On its 2015 list, the Fish and Wildlife Service included the 'ea, or hawksbill turtle, as well as the green turtle, Ridley sea turtle, leatherback turtle and loggerhead turtle. Four mammals are considered endangered: the Hawaiian hoary bat; the kohola, or humpback whale; the sperm whale; and the endemic Hawaiian monk seal.
We know virtually all of the genes known to mammals. We do not know all of the combinations.
What the Kinseyites and I had in common so long ago was the knowledge that homosexual and heterosexual behavior are natural to all mammals, and that what differs from individual to individual is the balance between these two complementary but not necessarily conflicted drives.
The difference between humans and other mammals is that we know how to accessorize.
The whole reason people fill their homes with furry carnivores and not with, say, iguanas and turtles, is because mammals offer something no reptile ever will. They give affection, they want affection, and respond to our emotions the way we do to theirs.
In my own writing, I avoid 'female' and try to say 'woman' because I feel that the word 'female' has connotations of not just biology but also non-human mammals. The idea of 'female' to me is more appropriate for a female animal.
Compared with mammals, birds have relatively large eyes. In simple terms, a bigger eye means better vision, and excellent vision is essential for avoiding collisions in flight, or for capturing fast-moving or camouflaged prey. Birds' eyes, however, are deceptive - they are bigger than they look.
There's no particular evidence that any of the lower mammals or any of the other animals have any interest in aesthetics at all. But Homo sapiens does, always has and always will.
Most of our ancestors were not perfect ladies and gentlemen. The majority of them weren't even mammals.
We already live a very long time for mammals, getting three times as many heartbeats as a mouse or elephant. It never seems enough though, does it?
There are good reasons why natural selection has become widely accepted as an explanation of evolutionary development. When applied to mammals and other large animals, it fits perfectly. But we cannot assume that all evolutionary steps arise from selection, particularly when looking at smaller animals.
However, further research has shown that it is the normal condition for humans and for most other mammals. It seems pretty clear why this is the case for most mammals and for most human beings.
Dolphins are social mammals, capable of enjoying their lives. They form close bonds with other members of their group.
Mammals are very close to us, but bugs are strange. They're more mysterious and exotic.
There have only been about a half dozen genuinely important events in the four-billion-year saga of life on Earth: single-celled life, multicelled life, differentiation into plants and animals, movement of animals from water to land, and the advent of mammals and consciousness.
I found it possible to observe at least the superficial capillaries of muscles both in the frog and in mammals through a binocular microscope, using strong reflected light as a source of illumination. Resting muscles observed in this way are usually quite pale, and the microscope reveals only a few capillaries at fairly regular intervals.
Dogs are the only mammals that will actually stare and look into a human's eyes.
When I visit my brother in South Africa, I order things I've only seen in zoos. Little deers and kudu, all the mammals you would never think of eating.
Perhaps the most mysterious of all mammals is the male Homo sapiens. Indeed, many anthropologists classify the group as a subspecies.