Ключевые слова: amazon, amazon region, amazon river, animal, aquarium, black, brown, cave, close, closeup, color, dark, diving, eel, electric, electric ear, electric fish, electricus, electrophorus, electrophorus electricus, fauna, fish, fresh, freshwater, freshwater fish, gorge, knifefish, life, nature, river, rock, rocks, saltwater, saltwater eel, shock, snake, stone, swimming, underwater, volt, volts, water, wild, wildlife,