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BREASTS, BUTTOCKS, AND THE CAMEL HUMP

In: Israel Journal of Ecology and Evolution
Author:
RAN ARIELI Israel Naval Medical Institute

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Breasts and buttocks are unique to humans and are not found in other primates. Hominids evolved in the arid climate east of the African Rift Valley. The present thesis proposes that buttocks and breasts developed in the naked ape as energy stores that do not interfere with cutaneous heat exchange. A larger energy store was required by the gestating and nursing human female waiting for provision of food by the male. Women’s specific fat stores (breasts, buttocks, and thighs) are a prerequisite for fertility, and because they characterize the female and signal her fertility, they are used as sexual attractants.

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