Ancient Skeletons In Brazil Carried A Genetic Signal Scientists Did Not Expect — And It Complicated The Story Of The First Americans
The ancient people of Lagoa Santa were genetically Native American, not Australasian.
The signal does not represent a dominant component of the ancestry of the populations in which it is found.
Multiple plausible models have been proposed to explain the signal, none of which has been definitively confirmed or refuted.
What is not known: Whether the signal reflects a separate migration event or deep ancestral structure in the founding Native American population.
The specific timing of when the Australasian-related ancestry diverged from other Asian populations.
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