The 24,000-Year-Old Boy Buried With 120 Beads And A Mammoth-Ivory Tiara — And The DNA Test That Revealed A Hidden Source Of Native American Ancestry
Each new ancient genome from this region adds a data point that helps constrain the possible models.
The general conclusion — that the mixing happened in Asia before the Beringian crossing — is well-established.
The specific when and where remains an active area of research.
What is clear is that the population that eventually crossed into Beringia and founded the Americas was not simply a displaced East Asian population and not simply an Ancient North Eurasian population.
It was the product of their mixture — a new population, formed in the mixing zone of northern Asia, that carried a specific combination of ancestries that appears today in the genomes of Native Americans across the Western Hemisphere.
The Beringian Isolation Period