This is a pure science post

来源: twoboys_mom 于 2017-09-29 08:05:35 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (169 bytes)

just from the point of how the hybridization is done in plant and animal and how different from people's marriage. I have no opinion on anything socially.

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