[思辯] 為什麼人類沒有發情期?
看板ask-why (知識奧秘)作者bamboo1106 (bamboo)時間13年前 (2011/06/29 02:04)推噓11(11推 0噓 30→)留言41則, 11人參與討論串1/2 (看更多)
為什麼人類不像其他動物一樣有發情期,
只有發情的時候才會想做愛,其他時候就不會。
還有發情期有好處嗎?
一般來說沒有發情期隨時隨地可以繁殖後代對生物來講不是比較好嗎?
不然發情了卻找不到另一半結果絕種了不是更慘。
那為何會演化出有發情期的生物出來。
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