Do animals think? Can they count? Do they have emotions? Do they feel anger, frustration, hurt, or sorrow? Are they bound by any moral code? At last, here is a book that provides authoritative answers to these long-standing questions. Most pop-science books tend to anthropomorphize and romanticize animals, presenting them as furry little humans or as creatures that cannot think or feel at all. Marc Hauser, an acclaimed scientist in the field of animal cognition, uses insights from evolutionary theory and cognitive science to examine animal thought without such biases or preconceptions. For example, do species that share food or travel in large groups have greater innate mathematical abilities? Hauser treats animals neither as machines devoid of feeling nor as extensions of humans, but as independent beings driven by their own complex impulses. In prose that is both elegant and edifying, Hauser describes his groundbreaking research in the field, leading his readers on what David Premack, author of The Mind of an Ape, calls "a masterful tour of the animal mind."