I have seen the study on "domesticating" foxes in the past, very cool stuff. As for laws regarding raising livestock for food, the government only has a say in it if you are going to be selling the meat, otherwise there aren't any government agencies that can tell you what do (so long as your animals are treated and slaughtered in a humane manner). And yes, riding an elk would be AWESOME! I will have pet deer someday, though I won't eat them as I will always be a hunter and will hunt whatever venison I need. I also plan to have buffalo as well, however they will be raised for meat. Right now my dad ranches longhorns but I have no desire to keep cattle, I want buffalo.