"Settling canine (Canidae) was complex and consistent, - F. Darlington writes in his" zoogeography ". - The spread of modern and fossil forms shows that are at least a dozen different groups at different times moved from Eurasia to North America and back, and at least three or four groups reached South America. " Today, on both sides of the Bering Strait inhabited by the same species of wolves, foxes and foxes (although American red fox is sometimes not considered a subspecies of the European red fox and the related view). And the wolves, and foxes, and foxes can overcome the frozen strait in winter and did not need the help of Beringia, to get from one continent to another. However, fossil finds of wolves show that Beringian land bridge served them for resettlement.