The Taï Chimpanzee Project (Taï National Park, Côte d'Ivoire) has yielded unprecedented insights into the nature of cooperation, cognition, and culture in one of our closest living relatives. Founded in 1979 by Christophe and Hedwige Boesch, the project has entered its 40th year of continuous research. Alongside other famous long-term chimpanzee study sites at Gombe and Mahale in East Africa, the tireless work of the team at Taï has contributed to the fields of behavioural ecology and anthropology as well as improving public awareness of the urgent need this already critical endangered species. Encompassing important research topics including chimpanzeeecology, reproductive behaviour, tool use, culture, communication, cognition, and conservation, this book provides an engaging account of how Taï Chimpanzees are adapted to African jungle life and how they developed unique forms of cooperation with less violence, regular adoptions and complex cultural differences between groups.