In this thought-provoking book, the acclaimed author of Our Inner Ape examines how empathy comes naturally to a great variety of animals, including humans. Are we our brothers' keepers? Do we have an instinct for compassion? Or are we, as is often assumed, only on earth to serve our own survival and interests? By studying social behaviors in animals, such as bonding, the herd instinct, the forming of trusting alliances,...