送交者: bluesea 于 2013-05-31, 08:36:49:

回答: 用基因来解释并不牵强 由 qtl 于 2013-05-31, 07:26:30:

• Richard Dawkins explains how the gay gene was preserved - Kurt (115 bytes) 2013-05-31, 09:03:54 (717989)
  • but no one has identified such a gene yet - pgss (61 bytes) 2013-05-31, 22:00:27 (718084)

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