Ключевые слова: animal, apex predator, aquatic, awareness, beautiful, biology, black, blue, cetacean, conservation, coral reef, danger, deep, diet, documentary, dolphin, education, endangered, environment, fish, hunting, intelligence, killer, killer whale, mammal, marine, marine mammal, nature, nature background, ocean, orca, orca whale, predator, reef, research, science, sea, sun, sunlight, swim, swimming, underwater, underwater photography, vocalization, water, whale, white, wildlife, zoology,