Dale Peterson is the author of Storyville, USA (1999), Chimpanzee Travels: On and Off the Road in Africa (1995), and The Deluge and the Ark: A Journey into Primate Worlds (1989). He is the editor of Beyond Innocence: Jane Goodall's Later Life in Letters (2001) and Africa in My Blood: Jane Goodall's Early Life in Letters (2000). He is the coauthor of Demonic Males: Apes and the Origins of Human Violence (1996) and Visions of Caliban: On Chimpanzees and People (1993). Karl Ammann is an award-winning photographer who has photographed wildlife throughout Africa and Southeast Asia.