An anthropology professor has looked to DNA to tell the story of how ancient humans first came to the Americas and what happened to them once they were here.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...



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La prevención del VIH no llega a las jóvenes sudafricanas

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