Save the Chimps - Group that cares for abandoned and orphaned chimpanzees. www.savethechimps.org
The Most Powerful Chimpanzee of the Netherlands - Research on the Arnhem Zoo chimpanzee colony and publications by Otto Adang, e.g. about teasing and the development of quasi-aggressive behavior. chimpansee.homestead.com/menu.html
WWF - Chimpanzees - Biology and conservation issues. www.panda.org/species/chimp
