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Of Lice And Men: Parasite Genes Reveal Modern & Archaic Humans Made Contact

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“When scientists first determined that we (Homo sapiens) were contemporaneous [uppi á sama tíma] with Neanderthals (Homo neanderthalensis) in Europe, it was suspicious that our contact with them immediately preceded their extinction,” Reed says. “Our study has provided evidence that we had contact with Homo erectus in Asia just prior to the extinction of that species as well. Did we cause the extinction of two other species of humans?”