Ключевые слова: adult, american, animal, awesome, beautiful, bison, brown, buff, buffalo, bull, cold, conditions, cow, family, female, field, frozen, fur, group, harsh, head, herd, horn, horns, icon, landscape, mammal, national, nature, outdoors, park, prairie, russia, season, snow, species, struggle, survival, survive, together, usa, walk, weather, wild, wilderness, wildlife, winter, wisent, wyoming, yellowstone,