的確是這樣。族群親緣間的利他，是進化的產物，我以前也講過猴群中的利他警戒尖叫現象。

來源: 越吃越蒙山人於 2024-04-03 07:38:23 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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