In Wyoming there is currently a great deal of discontent among the locals outside of the Yellowstone basin due to the current situation with the wolves. They are hard on the livestock and domestic pets. Attacks on humans while rare do happen, but the liberally biased media usually doesn't say too much. In 2003 our family backpacked the Absoarka range in Yellowstone and we heard wolves almost every morning. I can honestly say that it was worth the 40 mile hike to hear them from the tent!