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Now, before you get your undies all knotted up, read this:
Quote:
Now a team of scientists led by the Danish geneticist Eske Willerslev has analyzed the boy's origins and discovered that he descends from a Siberian tribe with roots tracing back to Europe. Some of the boy's ancestors are likely even to have lived in present-day Germany.
Their findings go even further: More than 80 percent of all native peoples in the Americas -- from the Alaska's Aleuts to the Maya of Yucatan to the Aymaras along the Andes -- are descended from Montana boy's lineage.
Why would there be mention of "African genes" when the groups of people being dealt with in the article ranged in age from 12,500 to 70,000 or so years ago. All of humanity shares one common ancestor known as "Mitochondrial Eve" that dates to around 200,000 years ago and was African. She is where the two main branches of humanity meet.
In 1987, a group of geneticists published a surprising study in the journal Nature. The researchers examined the mitochondrial DNA (mtDNA) taken from 147 people across all of today's major racial groups. These researchers found that the lineage of all people alive today falls on one of two branches in humanity's family tree. One of these branches consists of nothing but African lineage, the other contains all other groups, including some African lineage.
Even more impressive, the geneticists concluded that every person on Earth right now can trace his or her lineage back to a single common female ancestor who lived around 200,000 years ago. Because one entire branch of human lineage is of African origin and the other contains African lineage as well, the study's authors concluded Africa is the place where this woman lived. The scientists named this common female ancestor Mitochondrial Eve.
We are solely children of Africa—with no Neandertals or island-dwelling "hobbits" in our family tree, according to a new study.
Scientists who compared the skulls and DNA of human remains from around the world say their results point to modern humans (Homo sapiens) having a single origin in Africa.
We are all "African" in the broadest sense. The only thing shown in the article is that the tribe that the boy who was the focus of the study belonged to had at some point in its distant past originated from Europe. If we were to then trace that lineage back further we would wind up in Africa around 200,000 years ago.
So, while I found it very interesting, I don't think there is much gained through this in the general understanding of migration and how humans came to the Americas. It pretty much reinforces the existing understanding with additional details.
It's starting to look like two land bridges where crossed 20,000+ years ago. One from Siberia-Bering straights and one from Euro-Iceland-greendland-Canada.
I've always been interested in historical novels about the great migration from Siberia to North America. My favorite authors are Kathleen O'Neal Gear and W. Michael Gear who've written 25 novels on the subject.
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