> But it was also possible the wolves/dogs just really liked snacking in between meals.
My pet theory is that humans captured wolf pups, possibly by dealing with parents first, and kept them around as pets. People love playing with tiger, bear, and wolf pups and keeping them as pets today.
did you ever hear the story about the Russian researcher who bred foxes into domestic pets within only about a dozen and a half dozen rounds of keeping only the "cutest" pups?
". Within just 15 generations of selective breeding, the experiment had yielded foxes that could live with people."
They may have but that's a way to get a (maybe) tame wolf, not a domesticated dog.
It would take generations of breeding the tamest ones, with the behaviors you wanted, to get something like the beginnings of domesticated dogs.