Jellyfish or jellies are typified as free-swimming marine animals consisting of a gelatinous umbrella-shaped bell and trailing tentacles. The bell can pulsate for locomotion, while stinging tentacles can be used to capture prey. Jellyfish are found in every ocean, from the surface to the deep sea & a few inhabit freshwater. Jellyfish have roamed the seas for at least 500 million years, and possibly 700 million years or more, making them the oldest multi-organ animal
Jelly fish are strange, with 90% of their body water they don't have a brain, all jelly fish have a squishy hemisphere for a head and deadly stingers that are directly below the head. The stingers kill fish, some jelly fish can kill or wound a human.