Ключевые слова: africa, african, aggression, aggressive, amphibius, angry, animal, animalia, aquatic, artiodactyl, artiodactyla, background, beast, big, body, brown, chordata, class, creature, danger, dangerous, domain, even, eventoed, eye, family, fat, fauna, gray, grey, happy, head, hippo, hippopotamus, hoof, hooved, huge, jaw, kingdom, large, life, living, looking, male, mammal, mammalia, monster, mouth, natural, nature, one, open, order, park, phylum, pink, portrait, relax, river, safari, smile, species, standing, submerged, teeth, toed, ungulate, view, water, white, wild, wilderness, wildlife, zoo,