We should stop bringing more domestic animals into existence.

Domesticated animals such as dogs and cats are vulnerable and entirely dependent on us for all of their needs. They live very unnatural lives because they are not part of the human world and they are not part of the animal world.

But if there were two dogs left in the universe and it were up to us as to whether they were allowed to breed so that we could continue to live with dogs, and even if we could guarantee that all dogs would have homes as loving as the one that we provide, we would not hesitate for a second to bring the whole institution of 'pet' ownership to an end.

We do not need to eat animals, wear animals, or use animals for entertainment purposes, and our only defense of these uses is our pleasure, amusement, and convenience.

Just as we reject racism, sexism, ageism, and heterosexism, we reject speciesism. The species of a sentient being is no more reason to deny the protection of this basic right than race, sex, age, or sexual orientation is a reason to deny membership in the human moral community to other humans.

There is increasing social concern about our use of nonhumans for experiments, food, clothing and entertainment. This concern about animals reflects both our own moral development as a civilization and our recognition that the differences between humans and animals are, for the most part, differences of degree and not of kind.

We do not think clearly about our moral obligations to animals.