Ключевые слова: america, animal, basin, biology, bull, canadensis, cervus, cervus canadensis, creature, critter, ecology, elk, environment, fauna, feature, fog, forest, furry, geyser, life, mammal, mammalogy, mammals, national, natural, nature, organism, outdoors, species, steam, thermal, thumb, usa, wapiti, west, wild, wildlife, wyoming, yellowstone, yellowstone national park,