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Primate Research Institute, Kyoto University
Boesch / Oral
Hunting, Tools, and Sociality: A new evolutionary scenario for chimpanzees and humans
Chimpanzees and humans possess in common three behavioural
properties that distinguish them from the rest of the primates and mammals: They are the
only species in which all know living populations use regularly many different types of
tools, hunt regularly at least a few mammal species for meat, and live in large groups
with a flexible fission-fusion social structure. If some models of human evolution have
considered one or two of these behavioural patterns, none has stressed the importance of
the simultaneous presence of the three of them within the chimpanzee-human clade. I
propose here an evolutionary scenario of the evolution in chimpanzees and humans of these
three abilities and explain how this was possible thank to the appearance of new cognitive
capacities in this clade.
Boesch, C. and Boesch-Achermann, H. 2000. The Chimpanzees of the Taï Forest: Behavioural Ecology and Evolution. Oxford: Oxford University Press.