In terms of predators, I would have to say wolverines. Mainly because they are not very common (making them that more precious) and their remarkable ferocity and toughness. I read an article where one radio collared wolverine travelled from Glacier to Jackson Wyoming area and back (all in one summer). That, and I have actually seen one in the Beartooth Mountains in Wyoming and the North Cascades in Washington. Two of the most memorable wildlife sightings in my life.
