Your fingers may hold a secret of human brain evolution
Published: 2026-07-21 • Permanent link
A study of 225 newborns suggests prenatal estrogen may have played a role in the evolution of larger human brains.
Boys with finger-length patterns linked to higher estrogen exposure before birth tended to have larger head circumferences, which are strongly a...
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Why it matters: A study of 225 newborns suggests prenatal estrogen may have played a role in the evolution of larger human brains. Boys with finger-length patterns linked to higher estrogen exposure before birth tended to have larger head circumferences,...
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