Origin of the domestic dog them to more successfully adapt to the human habitat. Even today, the wolves on Ellesmere Island do not fear humans, which is thought to be due to them seeing humans so little, and they will approach humans cautiously, curiously and closely. Some studies have found greater diversity in the genetic markers of dogs from East and Central Asia compared to Europe and have concluded that dogs originated from these regions, despite no archaeological evidence to support the conclusions. One reason for these discrepancies is the sustained admixture between different dog and wolf populations across the Old and New Worlds over
Origin of the domestic dog had been calculated in an earlier study. Using the 7,000 YBP specimen and this mutation rate, the dog-wolf divergence time is estimated to have occurred 36,900-41,500 YBP and this is consistent with the timing found with the Taimyr-1 specimen in an earlier study. In 2018, a study looked at the y-chromosome male lineage of canines, including the ancient fossils of the Herxheim, Kirschbaum, and Newgrange dogs. The study identified six major dog yDNA haplogroups, of which two of these include the majority of modern dogs. The Newgrange dog fell into the most commonly occurring of these haplogroups. The two ancient