Answer: 与神马有关;-)

来源: 7grizzly 于 2014-12-09 15:28:49 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (113 bytes)

As I'm reading about evolution, this "normal" sleeping pattern must have been the result of natural selection.

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• But that's only for now... -7grizzly- ♀ 给 7grizzly 发送悄悄话 7grizzly 的博客首页 (144 bytes) () 12/09/2014 postreply 15:48:18

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