Jellyfish have cells called cnidocytes, which contain nematocysts, and located on their tentacles and on their manubrium. Whenever a predator comes in contact with cnidocytes, hundreds to thousands of cnidae (filaments of the nematocysts) are ejected in the predator's direction. Nematocysts' cnidae inoculate a poisonous or allergenic mixture into the predator's body.
Stinging tentacles.
sting its prey
A jellyfish's main key feature is the sting, used both to protect itself and to catch prey. The sting is let out from the tentacles.
The moon jellyfish has one stomach.
moon jellyfish
The scientific name for moon jellyfish is Aurelia aurita
Whales, turtles, and larger types of fish all eat the moon jellyfish. The moon jellyfish is thought to have existed for millions of years.
The moon jellyfish is one of the most common jellyfish on the planet, and they die all the time. Figure it out for yourself.
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coral Jellyfish