Ключевые слова: animal, aquarium, aquatic, background, biology, blue, captivity, dangerous, dark, deep, fish, floating, flow, fluorescent, group, invertebrate, invertebrates, jelly fish, jellyfish, little, luminescent, marine, motion, nature, ocean, phosphorescent, sea, small, sting, swimming, tentacle, tentacles, translucent, transparent, tropical, underwater, water, white, wildlife,