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海底世界：揭密海星是如何交配的? (组图)(2)

2007-07-02 10:48:01 论坛　【大中小】发表评论

海星一般通过体外受精繁殖海星是生活在大海中的一种棘皮动物，它们有很强的繁殖能力。全世界大概有1500种海星，大部分的海星，是通过体外受精繁殖的，不需要交配。

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