Hey guys, today while I was working on a project I had a side thought.
Today we are able to use DNA companies that show what areas of the world we are from. We are also still able to analyze DNA that is fossilized(not necessarily to show regions). And I remembered how people theorize where Native Americans came from, people believe even they came to the Americas prior to Columbus. So I did some searching and people can't solidly say where. There are a couple markers indicating Siberian, but only two. Some of Australian areas as well.
So why can't we source Native Americans like we can source ourselves currently?
Because their DNA is very distinct, because they were isolated from other people for 30,000+ years, and their ancestors in Asia do no exist anymore. Modern East Asians and Siberian ancestors came from the South and moved into the northern Siberia 8,000 years ago, while NAs were already established in the Americas.