Ключевые слова: africa, african, amphibius, animal, aquatic, big, body, brown, captivity, city, corral, danger, dangerous, enclosure, entertainment, eye, family, fat, head, herbivore, hippo, hippopotamus, holidays, huge, lake, large, local, mammal, natural, nature, outdoor, park, river, swim, tourism, tourists, travel, treat, treatment, urban, vacation, visitor, watching, water, weekend, wet, wild, wildlife, zoo,