The distribution maps are nice EH but you really didn't address the question. I will ask it again. What kept the hog population from exploding for the 600 years( your number) that they were in existence in the areas they inhabited? According to current propaganda, there should be somewhere in the neighborhood of 400 billion hogs there now at their uncontrollable reproduction rate.
You and I are saying the same thing. I don't think they explode on their own like many indicate.
