Humans are the only primates with a chin – now we finally know why

Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection

SINSIN
Feb 16, 2026 - 19:00
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Humans are the only primates with a chin – now we finally know why
Biologists have debated the reason why Homo sapiens evolved a prominent lower jaw, but this unique feature may actually be a by-product of other traits shaped by natural selection

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