Ключевые слова: actinopterygii, amazon, america, american, animal, aquarium, arapaima, arapaimidae, big, black, body, ecology, essequibo, fauna, fish, fresh, freshwater, gigas, head, life, monster, natural, nature, one, paiche, pirarucu, river, scale, sea, south, sudis, swim, tropical, underwater, water, wild, wildlife, zoo,