title: Manufacture and use of tools in wild Sumatran orangutans. Implications for human evolution.
authors.affiliation: Department of Biological Anthropology and Anatomy, Duke University, Durham, NC 27708, USA.
authors.forename: C P
authors.initials: CP
authors.lastname: van Schaik
authors.forename: E A
authors.initials: EA
authors.lastname: Fox
authors.forename: A F
authors.initials: AF
authors.lastname: Sitompul
mesh_terms: D000818:Animals; D000835:Animals, Wild; D005075:Biological Evolution; D005247:Feeding Behavior; D015186:Hominidae; D006801:Humans; D007214:Indonesia; D007313:Insecta; D011148:Pongo pygmaeus / Q000523:psychology*; D014937:Work