New genetic research now suggests that when the ancient Inuits migrated from Siberia to North America they brought their dogs with them. Considered one of the toughest and strongest breeds, this ancient Siberian canine was so indispensable, the genetic research shows the Inuits used them exclusively. They did not even interbreed with the new dogs they found in North America. The new study showed that over 4,500 years, Inuit new dogs were and remained genetically distinct and physically different from the dogs who arrived earlier in North America.
Where the humans went they brought their dogs, so Inuit dogs rapidly dominated and spread eastward in the North American Arctic alongside their humans’ migration. Because the Inuit remained faithful to their sled dogs, the pre-existing native dogs were almost completely replaced.
This genetic distinction has been maintained through today, too. The study compared 922 Arctic dogs and wolves who lived over 4,500 years. Modern sled dogs, according to their genomes, are some of the last direct descendants of the breed the Inuit brought with them from Siberia.