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Did you ever stopped to wonder why sex and violence so often go hand in hand?
你有沒有靜下來思考過，為什么性和暴力總是聯系在一起呢？
How come nobody complains about violence and gardening, say, or sex and bowling?
為什么沒有人抱怨暴力與園藝或者性與保齡球之間的聯系呢？
There may be a biological basis for this, as we can see when we look at other species.
通過觀察其他物種，你可能會發現這其中的生物因素。
In his book Shadows of Forgotten Ancestors, Carl Sagan points to the blue heron when considering this question.
出于對這個問題的考慮，卡爾·薩根（Carl Sagan）在“被遺忘祖先的影子”一書中提到了藍鷺。
The male blue heron will emit a call that attracts females.
雄性藍鷺會大叫來吸引雌性注意。
When one arrives and shows interest in mating, however, the male drives her away and may even attack her.
但當雌性藍鷺近身意欲交配時，雄性藍鷺開始驅趕它甚至發起攻擊。
Once she is gone he cries out again for her return. This behavior continues until eventually the male is able to mate without fighting.
一旦雌鷺離開，雄性藍鷺會再次大叫吸引雌鷺返回。這種行為會一直持續到雄鷺不再攻擊并進行交配為止。
譯文為可可英語翻譯，未經授權請勿轉載!
