Jellyfish are composed of 95% water and 5% solid material. the box jellyfish does but not the other types of jellies; the box jellyfish does not seem to see white, but sees black and red. As water runs in and out of the Jellyfish, it will take out the “garbage” (feces). Jellyfish repellant will protect you against even larvae and very small jellyfish. But another fun fact about that jellies is that they do not have an anus. Despite their simple body design, some jellyfish have the ability to see. Jellyfish are almost completely controlled by tidal curents. Jellyfish larvae are tiny and much more difficult to spot. Because of their physical makeup, jellyfish actually require much less oxygen than many other sea creatures. Can the box jellyfish see? Most jellyfish only sting when they are provoked. https://www.livescience.com/13929-box-jellyfish-eyes-navigation-brain.html A play button in the shape of a television screen. Immediately leave the water if you see something you suspect to be a jellyfish or tentacle. If there is no escape, tread slowly and hope that the jellyfish passes you by. See our Research The letter F. A stylized bird with an open mouth, tweeting. A Jellyfish stinger moves faster than a bullet shot from a gun. But you’d be wrong. Jellyfish can clone themselves through its ability of regeneration. https://www.dailyherald.com/article/20130320/news/703209834 Jellyfish are more complex than you’d think—and one of their most fascinating parts is their stinging cells. Hope that made sense. My guess is that, as jellyfish are floating bodies with tentacles hanging below, even if two jellyfish right next to each other were caught in a strong current they would both be moved in exactly the same way and so the tentacles would still clear each other. Jellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals composed of about 200 described species, or of the class Cubozoa (approximately 20 species). In fact, for a few species their vision can be surprisingly complex . Located on their tentacles, jellyfish's stinging cells are called cnidocytes. As a jellyfish eat there will be a waste of course. If you see a jellyfish in the water, stay cool. The word "in". So the waste from the food will have to get out the same way it came in: Through the mouth! If possible, swim calmly away from the jellyfish towards shore. Jellyfish are transparent and made up of 95 percent water, so you’d think there isn’t much to them. Some jellyfish glow in the dark. No, jellyfish do not see. Jellyfish can be big or small, clear or colourful. The box jellyfish is one of the most dangerous animals in the world, capable of stopping a person's heartbeat in two minutes. 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