Ключевые слова: action, action shot, africa, african, animal, common hippopotamus, grass, grassland, herbivore, hippo, hippopotamus, hippopotamus amphibius, mammal, movement, nature, nile hippopotamus, plain, plains, portrait, river hippopotamus, safari, savanna, savannah, serengeti, serengeti national park, tanzania, travel, vertical, walk, walking, walks, wildlife,