Ключевые слова: adult, africa, african, amphibius, animal, aquatic, background, behemoth, big, body, danger, dangerous, endangered, eyes, fat, fauna, head, herbivore, hippo, hippopotamus, huge, isolated, jaw, lake, large, lazy, looking, male, mammal, massive, mouth, natural, nature, one, outdoor, overweight, park, river, riverhorse, safari, species, submerged, swim, swimming, vertebrate, water, wet, wild, wilderness, wildlife, zoo,