Gorillas' (Gorilla g. gorilla) knowledge of conspecifics' affordances: intraspecific social tool use for food acquisition

Autor(en): Prieur, Jacques
Pika, Simone 
Stichwörter: BEHAVIOR; BONOBOS; CAPUCHIN MONKEYS; CEBUS-APELLA; Cognition; COOPERATION; EVOLUTION; Gorilla gorilla gorilla; Great apes; Knowledge of the social world; LOPE RESERVE; LOWLAND GORILLAS; MOUNTAIN GORILLAS; Social tool use; WILD CHIMPANZEES; Zoology
Erscheinungsdatum: 2020
Herausgeber: SPRINGER JAPAN KK
Journal: PRIMATES
Volumen: 61
Ausgabe: 4
Startseite: 583
Seitenende: 591
Zusammenfassung: 
The use of tools, long thought to be uniquely human, has now been observed in other animal taxa including several species of birds, non-primate mammals as well as some non-human primate species. Chimpanzees, one of humankind's closest living relatives, exceed all other non-human animal species as they have been reported to use an exceptionally large toolkit. However, relatively little is known about the tool-use skills of the other great ape species. While the majority of tools described are inanimate objects, the use of social tools has received relatively little attention. Here we provide the first evidence of naturally occurring spontaneous exploitative behaviour of a conspecific as a social tool for food acquisition in non-human animals. We observed gorillas in captivity utilising a conspecific as a ladder to gain access to unreachable food. We discuss our findings in the light of other studies on social tool use and suggest the need for more nuanced interpretations of gorillas' cognitive skills.
ISSN: 00328332
DOI: 10.1007/s10329-020-00805-6

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