Tools and Teeth: Some Speculations Regarding Canine Reduction1

Ralph L. Holloway

67 citations0/0 files storedAmerican Anthropologist

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Primate Behavior and Ecology Pleistocene-Era Hominins and Archaeology Evolutionary Psychology and Human Behavior

Abstract

Starting with a critique of current beliefs that maxillary canine reduction in hominids was causally related to tool‐use and tool‐making, the article suggests that reduction took place because selection favored a different pattern of social behavior. Sexual dimorphism and aggressive intragroup behavior tend to be related in terrestrial primates. A shift in hormonal interactions is suggested, such that selection for diminution of aggressiveness resulted in a diminution of sexual dimorphism. Tool‐making is seen as one of a number of cognitive reorganizations, not as a causal factor in canine reduction.

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References

1964Classification and Human Evolution 1960Tools and Human Evolution 1966Evolution of Primate Societies 1964African Ecology and Human Evolution.1960Evolution after Darwin 1956The dentition of the Australopithecinae 2013African Ecology and Human Evolution 1961The Social Life of Baboons

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