Ключевые слова: africa, african, amphibius, animal, asleep, behavior, big, body, brown, close, creature, danger, dangerous, eat, eating, environment, fat, fauna, feeding, grass, green, hippo, hippopotamus, hungry, large, life, mammal, national, natural, nature, outdoor, outside, overweight, park, pink, reserve, safari, sleep, south, standing, strong, summer, travel, view, wild, wilderness, wildlife, zoo,