Dall sheep in Denali National Park, Alaska. This beautiful female, or ewe, doesn't have too much to worry about. Their main predators are wolves and grizzly bears, but even golden eagles can take a young sheep. They are not easy prey however, as they have split hooves with a rubbery surface which allow them to be extremely agile while bounding along cliff faces and rocks. They've even been known push wolves off of cliffs as a last stand.