從科學家的角度，異性相交後代才能健康。自交或近親繁殖導致後代純化而使基因退化產生疾病，最後物種滅絕。

來源: FollowNature 於 2022-04-13 18:34:00 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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