Ключевые слова: alertness, american, animal, animals, blacktailed, brown, cute, dog, domestic, endangered, family, fur, furry, green, hair, herbivorous, hole, looking, lookout, mammal, marmotini, nature, north, out, prairie, prairy, prarie, river, rodent, rodentia, rodents, shelter, sitting, skull, small, species, surveillance, wild, wildlife, woodchuck, zoo, zool,