Answer: I agree, and surprisingly good. Forster and his colleagues calculated the age of the lines A1, A2, B and C of the peoples inhabiting the territory lying south of the glaciers, and the age of the line D1 - for American Indians from North, Central and South America. The analysis showed that the genetic age of ten of the twelve groups of older age Clovis. In an effort to achieve greater accuracy of the calculations, the researchers calculated the arithmetic average age for all four groups (A - D), distributing them in three regions (Figure 7.5.). It turned out that the genetic age of the North American Indians is 23 thousand years, Central America -16 000 years, and in South America - 21 thousand years. Therefore, age-ancestor lines A1, A2, B, C and D1 indicates that they appeared in America in the 21-22 thousand years ago, that is, at a time when the ice corridor was still closed. When Forster and his colleagues began to study child type A2 in the group Na-Dene and Eskimo (Inuit) -aleutskoy, it turned out that her age, corresponding to the period of settlement of these territories is 11 300 years, indicating that the secondary settling these lands in the Clovis era. But the results of these studies can be interpreted poinomu: it's not just that culture, and indeed the people of the Eskimos (Inuit) is a relatively recent phenomenon, but also that their genes Eskimos mainly inherited from the ancient ancestors of America .