它只是为了生殖？
They are part of the human procreation process.
它们是人类繁育过程的一部分。
In fact, that runs counter to the "procreation creed" of Mother Nature.
事实上，这种想法恰恰与大自然约定的“生育法则”背道而驰。
All of this is important in evolution's ultimate goal-successful procreation.
这些对进化的最终目标非常重要，即——传宗接代。
They believe that their behavior is primarily for procreation.
他们认为他们的行为主要是为了繁衍。
They believe that their behavior is primarily for procreation.
他们认为他们的行为主要是为了繁衍。
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