yellowstone national park imported wolves from canada...at the time, i recall one of the explanations being that big game was overpopulating beyond the available food supply and that was weakening all the herds, so they needed wolves to hunt them down to reasonable numbers:
Yellowstone Park Wolves
maladroit Reviewed by maladroit on . wolves shot from the air to protect caribou. This one is for the dog lovers out there Aerial Wolf Gunning 101What is it, and why does vice presidential nominee Sarah Palin support the practice? By Samantha Henig Posted Tuesday, Sept. 2, 2008, at 6:38 PM ET Wolves. Click image to expand.Wolves Sarah Palin, the governor of Alaska and John McCain's vice presidential pick, is an enthusiastic hunter who has proposed legislation and cash incentives to encourage aerial wolf gunning, the controversial practice of shooting wolves from an Rating: 5