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Origin of the domestic dog. This article is about the origin of the domestic dog. For dog breeding, see Dog breeding. The origin of the domestic dog is not clear. Whole genome sequencing indicates that the dog, the gray wolf, and the extinct Taymyr wolf diverged at around the same time 27,000â40,000 years before present (YBP). These dates imply that the earliest dogs arose in the time of human hunter-gatherers and not agriculturists.
Evolutionary biologists believe that gray wolves emerged about 800,000 years ago during the Pleistocene epoch. Modern European and North American wolves are believed to have descended from a subspecies that arose about 150,000 years ago.