title: Animal Behaviour: Friendship Enhances Trust in Chimpanzees.
abstract: Individuals that participate in exchanges with delayed rewards can be exploited if their partners don't reciprocate. In humans, friendships are built on trust, and trust enhances cooperation. New evidence suggests that close social bonds also enhance trust in chimpanzees.
authors.affiliation: School of Human Evolution and Social Change, Arizona State University, Tempe, AZ 85287-2402, USA. Electronic address: joansilk@gmail.com.
authors.forename: Joan
authors.initials: J
authors.lastname: Silk
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D033062:Friends; D006801:Humans; D002679:Pan troglodytes; D012919:Social Behavior; D035502:Trust