Ключевые слова: amazon, amazon jungle, amazon rain forest, amazonia, america, ancient, animal, aquarium, aquatic, arapaima, big, coast, fauna, fish, fishing, fresh, freshwater, giant, gigas, lake, large, largest, marine, monster, nature, old, pirarucu, predator, predatory, prehistoric, rare, root, south, tropical, underwater, unique, water, wild, wildlife,