妊娠纹是一种常见现象，影响高达80%的人，一位进化生物学家解释了它们的形成。这些纹路是皮肤结缔组织超出其弹性容量而拉伸的结果，通常是由于快速生长或体重变化引起的。这位生物学家指出，进化并未消除妊娠纹，因为它们不会带来显著的生存劣势，也不应成为羞耻的根源。 AI
排序理由 该条目是专家对一种生物现象的解释，符合评论类别。
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进化生物学家解释妊娠纹的常见原因
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高达80%的人有妊娠纹——一位进化生物学家解释了原因
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