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我们为什么有臀部？这样真的有利于生育力吗？
source link: https://tech.sina.com.cn/d/f/2018-06-11/doc-ihcufqif7073328.shtml
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来源：利维坦公众号利维坦按：在动物世界，性选择是一个强大的进化驱动力。所谓性选择，主要指雌性和雄性会各自偏好某些与生育力或养育力有关的特定性状，并与携带这些性状的个体交配。这意味着，这些性状有着更高的几率被传递至下一代。然而，臀部大真的有利
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