誰說原始人不吃穀物?三四百萬年前人類祖先就吃草了。
http://releases.jhu.edu/2015/09/14/scientists-report-earlier-shift-in-human-ancestor-diet/
誰說原始人不吃穀物?三四百萬年前人類祖先就吃草了。
http://releases.jhu.edu/2015/09/14/scientists-report-earlier-shift-in-human-ancestor-diet/
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