Sources for this! Peer reviewed sources…
“All Native American mtDNA can be traced back to five Haplogroups called A, B, C, D, and X. More specifically, Native American mtDNA belongs to sub-haplogroups that are unique to the Americas and not found in Asia or Europe: A2, B2, C1, D1, and X2a (with minor groups C4c, D2, D3, and D4h3)”
10 posts published by Roberta Estes during November 2016
dna-explained.com
(Roberta Estes, DNA Explained, November 2016)
Analysis of ten Eurasian individuals, up to 7,500 years old, gives a new picture of movement across continents
www.smithsonianmag.com
Who is a Native American? And who gets to decide? From genealogists searching online for their ancestors to fortune hunters hoping for a slice of casino prof...
www.upress.umn.edu
Genomic analyses of DNA from modern individuals show that, about 800 years ago, pre-European contact occurred between Polynesian individuals and Native American individuals from near present-day Colombia, while remote Pacific islands were still being settled.
www.nature.com
Bird Martinez DNA results
Do you understand what this means?
“Migration within a larger time framework took place ca. 15,000–18,000 BP, when the first Asian populations crossed the Bering Strait, ultimately founding the modern Amerindian population. Despite having as much as 18,000 years of selection in environments as diverse as those found in the Old World, body mass and proportion clines in the Americas are less steep than those in the Old World (Newman, 1953; Roberts, 1978). In fact, as Hulse (1960) pointed out, Amerindians, even in the tropics, tend to possess some ‘‘arctic’’ adaptations. Thus he concluded that it must take more than 15,000 years for modern humans to fully adapt to a new environment (see also Trinkaus, 1992). This suggests that body proportions tend not to be very plastic under natural conditions, and that selective rates on body shape are such that evolution in these features is long-term."
Body proportions covary with climate, apparently as the result of climatic selection. Ontogenic research and migrant studies have demonstrated that body proportions are largely genetically controlled and are under low selective rates; thus studies of body form can provide evidence for...
pubmed.ncbi.nlm.nih.gov
"What we can say, however, is that in the Holocene, humans from southwest Asia do not exhibit tropically adapted body shape (Crognier 1981; Eveleth and Tanner 1976; Schreider 1975)...."
"In fact, in terms of body shape, the European and the Inuit samples tend to be cold-adapted and tend to be separated in multivariate space from the more tropically adapted Africans, especially those groups from south of the Sahara."
Given the well-documented fact that human body proportions covary with climate (presumably due to the action of selection), one would expect that the Ipiutak and Tigara Inuit samples from Point Hope, Alaska, would be characterized by an extremely cold-adapted body shape. Comparison of the Point...
pubmed.ncbi.nlm.nih.gov
Today we are going to destroy all this pseudo armchair babble.