Alaskan ‘sunrise’ girl sheds light on how humans populated Americas
WASHINGTON (Reuters) Ancient DNA extracted Canada Goose Outlet from the skull Canada Goose online of a six week old baby girl whose 11,500 year old remains were unearthed in a burial cheap Canada Goose pit in central Alaska is helping scientists resolve long standing controversies about how humans first populated the Americas.
Scientists said on Wednesday Canada Goose online sale a study of her genome indicated there was just a single wave of migration into the Americas across a land bridge, now submerged, that spanned the Bering Strait and connected Siberia to Alaska during the Ice Age.
The infant named girl child (Xach T Gaay) using the local indigenous language belonged to a previously unknown Native American population that descended from those intrepid migrants, the researchers added.
study provides the Canada Goose Parka first direct genomic evidence that all Native American ancestry can be traced back to the same source population during the last Ice Age, University of Alaska Fairbanks archaeologist Ben Potter said.
The remains of the infant part of a hunter gatherer culture that Canada Goose Online hunted bison, elk, hare, squirrels and birds and caught canada goose black friday sale salmon were unearthed in 2013 at canada goose coats on sale a prehistoric encampment in Alaska Tanana River Valley about 50 canada goose clearance miles (80 km) southeast of Fairbanks.
Our species first arose in Africa roughly 300,000 years ago, and later spread around the world. The researchers studied the baby genome and genetic data covering canada goose other populations to unravel how and when cagooseclearance canada goose coats the Americas were first populated. Ben Potter/Handout via REUTERS
A single ancestral Native American group split from East Asians about 36,000 year ago and thousands of years later crossed the land bridge, they said. This founding group diverged into two lineages about 20,000 years ago.
The first lineage trekked south of the huge ice caps that covered much of North America between 20,000 and 15,000 years ago, spreading canada goose deals throughout North and South America and becoming the buy canada goose jacket ancestors of today Native Americans. Ben Potter/Handout via REUTERS
The second was the newly identified population called Ancient Canada Goose Coats On Sale Beringians canada goose clearance sale who included the infant. They eventually disappeared, perhaps canadian goose jacket absorbed into canada goose store another population buy canada goose jacket cheap that later inhabited Alaska.
Some scientists previously hypothesized about multiple migratory waves over the land bridge as recent as 14,000 years ago.
The girl was found alongside remains of an even younger female infant, possibly a first cousin, whose genome the researchers could not sequence. Both were Canada Goose Jackets covered in red ochre and surrounded by decorated antler tools.
the one that got Canada Goose sale sequenced was a huge challenge due to poor DNA preservation, said canada goose replica Eske Willerslev, director of the University of Copenhagen Centre for GeoGenetics.
