Apologize if this has already been posted somewhere (I looked where I figured it might be but didn't see it).
On Cosmos: A Spacetime Oddessy ep. 2, there was an animated feature that talked about the domestication of dogs, and showed a group of primitive hunters in yurts with their faithful hunting dogs. Couldn't be any mistaking the markings, curly tails and shapes of our favorite breed as they chased down prey with their people.
Wish I could find a clip to share if you missed it, but understandably the show's too new for anything to be up. Just keep your eyes out if they ever repeat it…it's right at the beginning.