Dogs, left to breed amongst themselves will eventually revert to “primitive type”.
Some breeds still retain that type, such as Dingos, Ibizan Hounds, Pharoah Hounds, *all* of the Podengo/Podenco types and Spitz types.
When you strip away all of man’s genetic “interference”, those dogs are what original dogs looked like.
I had a Carolina Dingo. That was one fine dog! I named him Blue because of the tint of his coat and the color of his eyes. Beautiful dog.