Bonobos go the furthest in same - sex bonding with regular copulation among males.
倭黑猩猩在同性關(guān)系方面步子邁得更大,他們雄性之間經(jīng)常交媾.
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He then made the action of copulation and broke the big stone.
說著就做出交媾的動作,把石頭弄破.
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For Darwin, mate choice simply stopped at copulation.
對達爾文來說, 擇偶僅僅停留在交尾.
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