Ключевые слова: actinopterygii, amazon, america, american, animal, aquarium, aquatic, arapaima, arapaimidae, big, biology, black, body, brasil, brazil, carnivore, close, ecology, essequibo, fauna, fish, fishes, fishing, fresh, freshwater, gigas, head, life, monster, natural, nature, one, paiche, pirarucu, portrait, predator, river, scale, south, sudis, swim, underwater, up, water, wild, wildlife, zoo,