P. C. Lee is a lecturer in Biological Anthropology at the University of Cambridge. She began field work on baboons in 1975 and has maintained an interest in the socioecology and behaviour of primates and other large mammals ever since. She has written numerous papers and has co-edited three previous volumes on primates: Primate Evolution, Primate Ecology and Conservation and Primate Ontogeny, Cognition and Behaviour (all 1986) and co-authored The Threatened Primates of Africa.