Native Americans could have originated from two ancestral populations

How and when America was first colonized still puzzles archeologists and other scientists to this day. The most recent piece of the puzzle comes from a team of researchers from Brazil and the US who recently published their work on the genome of Native Americans in the journal Nature.

Although previous research has shown a single common origin for Native groups from South, Central and North America ("First Americans"), this new article also presents evidence for a migration from Australasia. The settlers would have been ancestral to groups currently living in Amazonia and the Brazilian plateau.

Skull and facial reconstruction of Kennewick man, one of the oldest and most complete skeleton found in North America