Nope, noone is eating them. Sorry if that is what I seemed to say. The thing I was getting at was competition. There is no competition for them. So they are free to roam wherever to get to the overabundance of food that is available everywhere. Where as before, there were other wolves that kept the populations in check, which in turn would give no reason to the other species to spread beyond their normal range of inhabitance. I am not a biologist. I just know what I have seen happening over the last 15 or so years.