Social Inequality Leaves a Genetic Mark

When genetic structure follows social structure

Nautilus
Nautilus
Dec 21, 2018 · 11 min read
Credit: RKaulitzki/iStock/Getty Images Plus

By David Reich

In humans, the profound biological differences that exist between the sexes mean that a single male is physically capable of having far more children than is a single female. Women carry unborn children for nine months and often nurse them for several years prior to having…

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