Ralph Nader's newest work of the imagination, Animal Envy, is a fable about the kinds of intelligences that are all around us in other animals. What would animals tell us--about themselves, about us--if there were a common language among all animal species? A bracingly simple idea, one that has been used before in books like George Orwell's Animal Farm and E. B. White's Charlotte's Web among others, but never like this. In Animal...