Ключевые слова: adult, america, american, animal, awesome, bison, bovinae, bovine, buff, buffalo, bull, cold, conservation, cow, face, facial, frost, horn, huge, icon, landscape, male, mammal, mountain, mountains, national, nature, north, northern, park, portrait, prairie, reintroduction, snow, snowy, species, struggle, survival, survive, usa, vertebrates, weather, west, western, wild, wilderness, wildlife, winter, wyoming, yellowstone,