Some kinds of animals burrow in the ground; others do not. Some animals are nocturnal, as the owl and the bat; others use the hours of daylight. There are tame animals and wild animals. Man and the mule are always tame; the leopard and the wolf are invariably wild, and others, as the elephant, are easily tamed.
When I was 8 years old, my brother was making the noises of the animals I was eating, so I decided to go vegetarian. Then I would give up because I was 8.
It has been generally the custom of writers on natural history to take the habits and instincts of animals as the fixed point, and to consider their structure and organization as specially adapted to be in accordance with them.
Animals are certainly more sophisticated than we used to think. And we shouldn't lump together animals as a group. Crows and chimps and dogs are all highly intelligent in very different ways.
I don't want food that comes from animals that are caged up and fed antibiotics. I am really suspicious of that kind of production of meat and poultry.
Man's unique reward, however, is that while animals survive by adjusting themselves to their background, man survives by adjusting his background to himself.
Some animals utter a loud cry. Some are silent, and others have a voice, which in some cases may be expressed by a word; in others, it cannot. There are also noisy animals and silent animals, musical and unmusical kinds, but they are mostly noisy about the breeding season.
I'm a radical environmentalist; I think the sooner we asphyxiate in our own filth, the better. The world will do better without us. Maybe some fuzzy animals will go with us, but there'll be plenty of other animals, and they'll be back.
Animals are reliable, many full of love, true in their affections, predictable in their actions, grateful and loyal. Difficult standards for people to live up to.