Dr. Frans de Waal tells about the concept of reciprocity when it comes to working cooperatively among primate species. Will a chimpanzee do extra work for a better reward? Will a chimpanzee continue to work for a lesser reward when his colleague receives a better reward for the same work? Would you?

Dr. Frans de Waal is a primatologist and ethologist. He is the author of numerous books including "Chimpanzee Politics" (1982) and "Our Inner Ape" (2005), and he is director of the of the Living Links Center at the Yerkes National Primate Research Center at Emory University in Atlanta, Georgia.

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at http://ted.com/tedx