Thanks MtnClimber. Or, the older populations headed north. Or, people from all over kept arriving and leaving by boat.
Posted on 06/01/2018 5:58:43 PM PDT by MtnClimber
A new study suggests a commonly held belief – that the majority of Native North, Central and South Americans derived from one ancestry – is “unrealistically simple”. Earlier research suggested the first people to enter the Americas split into two ancestral branches, the northern and southern, and that the "southern branch" gave rise to all populations in Central and South America.
However the latest work finds that most, if not all, of the indigenous peoples of the southern continent retain, deep in their genetic history, at least some DNA from the "northern branch" -- the direct ancestors of many native communities living today in the Canadian east.
The research was carried out by a team led by scientists from Britain’s Cambridge University and the University of Illinois at Urbana–Champaign, in the US, and is published in the journal Science.
Genome evidence suggests that the two populations may have remained separate for millennia – long enough for distinct genetic ancestries to emerge – but they came back together before or during the expansion of people into South America. “We now find that all native populations in North, Central and South America also draw genetic ancestry from a northern branch most closely related to indigenous peoples of eastern Canada,” says one of the authors, archaeologist Toomas Kivisild.
“This cannot be explained by activity in the last few thousand years. It is something altogether more ancient.” Analyses of 91 ancient genomes recovered from human remains at sites in California and Canada provide evidence that the first peoples separated into two populations between 18,000 and 15,000 years ago. This would have been during or after migrating across the now-submerged land bridge from Siberia.
(Excerpt) Read more at cosmosmagazine.com ...
Funny, the indigenous people in South America don’t look much like those in North America to me.
This makes a kind of sense for me. There is a large mound city that is similar in structure to the Incan/Mayan city setups with a central mound/pyramid in southern Illinois.
To me it would make sense that the two groups came back together at a just before or after that time and that the knowledge of that type of city planning then headed south.
It could be that those who rejected it headed NE....similar to most liberals living in cities now and most conservatives living in the suburbs and rural areas.
“remained separate for millennia”
So, SOMEONE managed to build a wall...
The Inca civilization in South America had incredible infrastructure. I have hiked on their trails during mountain climbing trips.
I have also been to the National Museum of Anthropology in Mexico City. The Aztec displays were amazing. They had human sacrifice problems, but had incredible artifacts that were left behind. I must have used 10 rolls of film at the museum.
I went on to climb Ixtachupatetl, Popocatepetl and Orazaba, high altitude volcanoes and the 7th, 5th and 3rd highest peaks in North America. Popocatepetl was blowing steam when I was there, but then it started real eruptions and has been closed to climbing for maybe 20 years.
That would be well after the period they are talking about.
Cahokia flourished in the Middle Ages...around 1200-1400 if I remember right.
Is the second picture a shot of the hilltop NOAA Research Lab and the Flat Irons over Boulder? I lived in Boulder in the 1980s.
Are the animals caribou or elk?
That's a cool picture of your kids hanging out with a couple of forest kids.
Fauxcahontas head east.
Thanks MtnClimber. Or, the older populations headed north. Or, people from all over kept arriving and leaving by boat.
Call my cynical but I tend to hold all genetic announcements regarding ancient peoples in the Americas as politically rather than scientifically generated.
There’s too much money involved in the need to maintain the narrative regarding ancient peoples in the Americas for actual science to be conducted.
Yes, the buildings on top of the mesa is National Center for Atmospheric Research (NCAR).
Yes, the buildings on top of the mesa is National Center for Atmospheric Research (NCAR).
Oh, so this was DURING the time of the Inca Civilization. Why didn't you ask them yourself.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.
