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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.
Dogs and wolves are actually the same species. Their physical appearance is similar but their instincts, disposition and temperament are widely different. The gray wolf, or simply the wolf is the largest wild member of the Canidae family. The dog is the domesticated form of the gray wolf. Genetic drift studies and DNA sequencing confirm that domestic dog shares a common ancestry with the gray wolf. Eurasia and North America used to hold most of the worldâs wolf population but the numbers have begun to dwindle due to human encroachment.