English(EN) Only 20% Of Humans Have A Dimple In Their Chin — An Evolutionary Biologist Explains Why

人类下巴的进化起源和酒窝的形成

作者 PulseAugur 编辑部 · [1 个来源] · 2026-07-26 13:30

人类的下巴是一种独特的进化特征，是现存物种中唯一具有这种骨性突出的。虽然其确切目的仍有争议，但目前的理论认为它可能是人类进化过程中面部缩短的副产品，或者可能在视觉信号传递中发挥作用。常见的下巴酒窝，约占人口的20%，是由于胎儿发育过程中下颌骨两半融合不完全，导致皮肤出现凹陷。 AI

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Forbes — Innovation TIER_1 English(EN) · Scott Travers, Contributor · 2026-07-26 13:30

只有20%的人有酒窝——一位进化生物学家解释原因

Only about 1 in 5 people have a chin dimple. An evolutionary biologist unpacks the genetics — and the deeper mystery of why humans have chins at all.