2018-01-04 04:31:02 UTC
"Direct genetic traces of the earliest Native Americans have been
identified for the first time in a new study. The genetic evidence
suggests that people may have entered the continent in a single
migratory wave, perhaps arriving more than 20,000 years ago.
The data, which came from archaeological finds in Alaska, also points to
the existence of a previously unknown Native American population, whom
academics have named "Ancient Beringians"."
"Further analyses then revealed that the Ancient Beringians were an
offshoot of the same ancestor population as the Northern and Southern
Native American groups, but that they separated from that population
earlier in its history. This timeline allowed the researchers to
construct a picture of how and when the continent might have been
settled by a common, founding population of ancestral Native Americans,
that gradually divided into these different sub-groupings."
""One significant aspect of this research is that some people have
claimed the presence of humans in the Americas dates back earlier - to
30,000 years, 40,000 years, or even more," Willerslev added. "We cannot
prove that those claims are not true, but what we are saying, is that if
they are correct, they could not possibly have been the direct ancestors
to contemporary Native Americans.""