實驗動物是否也有同性戀？動物房常常把相同性別的大鼠圈養在一個籠子裏，這些同性大鼠經常互相擁抱。

來源: 禦用文人於 2015-07-07 20:17:07 [舊帖] [給我悄悄話] 本文已被閱讀：次

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