title: Behavior. A narrow road to cooperation.
authors.affiliation: Department of Anthropology, University of California, Los Angeles, CA 90095, USA. rboyd@anthro.ucla.edu
authors.forename: Robert
authors.initials: R
authors.lastname: Boyd
authors.forename: Sarah
authors.initials: S
authors.lastname: Mathew
mesh_terms: D005075:Biological Evolution; D003299:Cooperative Behavior; D006801:Humans; D008962:Models, Theoretical; D011678:Punishment; D012919:Social Behavior