Bringing together studies of behavioral variation within and among chimpanzees and bonobos - the sibling species of the genus Pan - this book provides the basis for answering such questions. In Chimpanzee Cultures, the world's leading authorities on chimpanzees and bonobos compare the animals' behaviors from one study site to the next, and in both captive and wild groups. These distinguished contributors offer the most thorough documentation to date of the remarkable variety of behaviors in these species so tantalizingly close to our own. While demonstrating that both nature and culture play important roles in the behavior of the Pan species, this book affords often astonishing insights into the workings of the individual chimpanzee mind and of chimpanzee and bonobo social groups.