Is human conversation more efficient than chimpanzee grooming?
- Michio NakamuraAffiliated withKyoto University Email author
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Clique sizes for chimpanzee (Pan troglodytes) grooming and for human conversation are compared in order to test Robin Dunbar’s hypothesis that human language is almost three times as efficient a bonding mechanism as primate grooming. Recalculation of the data provided by Dunbar et al. (1995) reveals that the average clique size for human conversation is 2.72 whereas that of chimpanzee grooming is shown to be 2.18. The efficiency of human conversation and actual chimpanzee grooming over Dunbar’s primate grooming model (always one-to-one and a one-way interaction) is 1.27 and 1.25, respectively, when we take role alternation into account. Chimpanzees can obtain about the same efficiency as humans in terms of quantity of social interactions because their grooming is often mutual and polyadic.
Key wordsBonding mechanisms Chimpanzees (Pan troglodytes) Clique size Conversation Efficiency Grooming
- Is human conversation more efficient than chimpanzee grooming?
Volume 11, Issue 3 , pp 281-297
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- Print ISSN
- Online ISSN
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- Bonding mechanisms
- Chimpanzees (Pan troglodytes)
- Clique size
- Michio Nakamura (1)
- Author Affiliations
- 1. Kyoto University, Japan