Includes information about Koko, the signing gorilla and general information about gorillas, videos of Koko and her friends, photographs of Koko as a baby, and some chapters of Francine Patterson's book about Koko.

Includes information about the organization; news and project information; gorilla basics; kid's activities; references, including popular literature, scientific papers, and kid-friendly titles.

Describes chimps of Tanzania's Gombe National Park from the Jane Goodall Institute's Center for Primate Studies. Offers biographies about specific chimpanzees, a virtual tour of the park, recorded chimp calls, interactive games.

Site of the Primate Conservation and Welfare Society. General information, their work, news, shop, and a kids zone.

Information about the study, preservation, and propagation of this highly endangered primate. Includes information about the Center, gibbons, and a bibliography of scientific literature.

Research and education program to learn about chimpanzees and their psychological and behavioral responses to a captive environment. Topics include general chimpanzee behavior, biology, evolution.