// Flush: yield any remaining data
By now, it's firmly established that modern humans and their Neanderthal relatives met and mated as our ancestors expanded out of Africa, resulting in a substantial amount of Neanderthal DNA scattered throughout our genome. Less widely recognized is that some of the Neanderthal genomes we've seen have pieces of modern human DNA as well.，更多细节参见heLLoword翻译官方下载
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Фото: Kuba Stezycki / Reuters