Explores the astonishing variation in chimpanzee behaviour across their range, which cannot be explained by individual learning, genetic or environmental influences. The author argues that this rich diversity in social life and material culture reflects social learning of traditions, and more closely resembles cultural variety in humans than the simpler behaviour of other animal species. This stimulating book shows that the field of cultural primatology may therefore help us to reconstruct the cultural evolution of Homo sapiens from earlier forms, and that it is essential for anthropologists, archaeologists and zoologists to work together to develop a stronger understanding of human and primate cultural evolution.