Cathedral approved reply to obvious and correct human-dog breed comparisons. The only real disanalogy is the use of selective breeding. Better comparison might be between human races and species of crows. I don't recall seeing any Fst estimates for gaps between crow species.https://twitter.com/HollyDunsworth/status/1148597366141984770 …
Not only that but there's the whole issue of human self-domestication, and of course non-random partner choice, which are both sort of directed/selected breeding of humans on themselves, but not as clean as the case of dog breeds for sheep herding, guarding, hunting etc.
