Ключевые слова: africa, african, animal, aquatic, big, child, common, danger, dangerous, ears, environment, family, farm, fat, father, fun, head, heavy, herbivore, hippo, hippopotamus, hippopotamus amphibius, huge, lake, large, mammal, massive, mother, mouth, nature, one, outdoor, park, pond, portrait, river, safari, savannah, summer, swim, swimming, traveling, underwater, walk, walking, water, wild, wildlife, zoo,