old article but currently just obsessing over this too. "Sled dogs and people living in the Arctic share 9,500 years of history: they lived together, covered long distances and hunted. It is noteworthy that the Zhokhov people cared about their old and sick pets until their last day. Joint adaption certainly must have been imprinted in the animals' genome. And the tradition of using dog sleds still exists in some groups in the extreme north in several Arctic regions. It is even seeing a renaissance as an extreme sport," Vladimir Pitulko concluded.