Previously: Our dogs' diversity can be traced back to the Stone Age https://news.ycombinator.com/item?id=45922997

Me: Not sure man. The closest relative to the dog is the likely extinct, Japanese Wolf https://en.wikipedia.org/wiki/Japanese_wolf Maybe they were very tame to begin with? Like the extinct Falkland wolf:

https://en.wikipedia.org/wiki/Falkland_Islands_wolf

"There were no forests for the animal to hide in, and it had no fear of humans;[citation needed] it was possible to lure the animal with a chunk of meat held in one hand, and kill it with a knife held in the other"