David Reich — How one small tribe conquered the world 70,000 years ago
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Reich 解释古 DNA 如何迫使研究者放弃原有的人口历史模型。他同时标出几乎没有取样的深层谱系:今天能画出一棵树,不表示每个曾存在的群体都留在树上。
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we really don't know what the past was like until we actually look at itwe really have no sampling except for the Denisovans and Neanderthals right now.