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? This volume aims to provide authoritative answers to these long-standing questions. Marc Hauser, a scientist in the field of animal cognition, uses insights from evolutionary theory and cognitive science to examine animal thought. Treating animals as neither machines devoid of feeling nor as extensions of humans, but as independant beings driven by their own complex impulses, Hauser's work attempts a tour of the animal mind.