Ключевые слова: africa, animalkingdom, animals, animalsinaction, aquatic, behavior, biodiversity, closeup, conservation, dramatic, eating, ecology, endangered, environment, exotic, fauna, feeding, giant, habitat, herbivore, hippopotamus, hippos, hungry, interaction, jaws, large, mammal, massive, natural, nature, openmouth, outdoors, powerful, riverhorse, safari, strong, teeth, unique, water, wild, wilderness, wildlife, wildlifephotography, zoo, zoology,