publication . Master thesis . 2014

Tool-use in excavation of underground food by captive chimpanzees (Pan troglodytes): Implication for wild chimpanzee behavior

Majlesi, Parandis;
Open Access English
  • Published: 01 Jan 2014
Extractive foraging of underground storage organs (USOs) is believed to have played an important role in human evolution. This behavior is also present in wild chimpanzees (Pan troglodytes), who sometimes use tools in the task. Despite the importance of studying this behavior in chimpanzees to model how early hominins may have used tools in the context of USO excavation, it remains to be directly observed due to the chimpanzees lack of habituation in the two study sites that yielded evidence of tool-use in USO excavation. Until now, no studies in captivity had been conducted to learn how chimpanzees could excavate underground food. The present experiment was des...
free text keywords: underground, food, excavating, tools, captive, chimpanzees
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