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Chimpanzees Share Forbidden Fruit
Hockings, Kimberley; Humle, Tatyana; Anderson, James; Biro, Dora; Sousa, Cláudia; Ohashi, Gaku; Matsuzawa, TetsuroPLoS ONE - www.plosone.org, V.9, e886 ; The sharing of wild plant foods is infrequent in chimpanzees, but in chimpanzee communities that engage in hunting, meat is frequently used as a ‘social tool’ for nurturing alliances and social bonds. Here we report the only recorded example of regular sharing of plant foods by unrelated, non-provisioned wild chimpanzees, and the contexts in which these sharing behaviour...
Cultural innovation and transmission of tool use in wild chimpanzees:evidence f...
Biro, Dora; Inoue-Nakamura, Noriko; Tonooka, Rikako; Yamakoshi, Ren; Sousa, Cláudia; Matsuzawa, TetsuroAnimal Cognition, V.6, pp. 213-223 ; Chimpanzees (Pan troglodytes) are the most proficient and versatile users of tools in the wild. How such skills become integrated into the behavioural repertoire of wild chimpanzee communities is investigated here by drawing together evidence from three complementary approaches in a group of oil-palm nut- (Elaeis guineensis) cracking chimpanzees at Bossou, Guinea. First, ex...
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