Introduction / Frans B.M. de Waal. -- Of genes and apes : chimpanzee social organization and reproduction / Anne E. Pusey. -- Apes from Venus : bonobos and human social evolution / Frans B.M. de Waal. -- Beyond the apes : reasons to consider the entire primate order / Karen B. Strier. -- The ape's gift : meat-eating, meat-sharing, and human evolution / Craig B. Stanford. -- Out of the pan, into the fire : how our ancestor's evolution depended on what they ate / Richard W. Wrangham. -- Social and technical forms of primate intelligence / Richard W. Byrne. -- Brains on two legs : group size and the evolution of intelligence / Robin I.M. Dunbar. -- From primate communication to human language / Charles T. Snowdon. -- The nature of culture : prospects and pitfalls of cultural primatology / William C. McGrew.