A child can't be owned, but parents are legally responsible for their child's care. A painting and a dog can be owned; both fall under the jurisdiction of the law and in particular, property rights. But why should a dog, man's best friend, an animal with a mind and emotions, fall under the same category as a painting?

Leaders in cognitive psychology, comparative biology, and neuroscience discuss patterns of convergence and divergence seen in studies of human and nonhuman primate brains.