If you were aboard a lifeboat with a baby and a dog, and the boat capsized, would you rescue the baby or the dog?" Regan, "If it were a retarded baby and a bright dog, I'd save the dog.

In a perfect world, we would not keep animals for our benefit, including pets,

What could be the basis of our having more inherent value than animals? Their lack of reason, or autonomy, or intellect? Only if we are willing to make the same judgment in the case of humans who are similarly deficient.

The other animals humans eat, use in science, hunt, trap, and exploit in a variety of ways, have a life of their own that is of importance to them apart from their utility to us. They are not only in the world, they are aware of it. What happens to them matters to them. Each has a life that fares better or worse for the one whose life it is.