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Jellyfish: Scyphozoa

Physical Characteristics, Behavior And Reproduction, Jellyfish And People, Sea Nettle (chrysaora Quinquecirrha): Species AccountsGEOGRAPHIC RANGE, HABITAT, DIET, CONSERVATION STATUS

SEA NETTLE (Chrysaora quinquecirrha): SPECIES ACCOUNTS
NIGHTLIGHT JELLYFISH (Pelagia noctiluca): SPECIES ACCOUNTS
THIMBLE JELLY (Linuche unguiculata): SPECIES ACCOUNTS

Jellyfish live in all the oceans of the world.


Jellyfish medusae live in seawater from shore areas exposed at low tide to the very deep ocean. The polyps are attached to hard surfaces, such as rocks, shells, and plants, at various depths.

Jellyfish eat plankton, which is microscopic plants and animals drifting in water; fish eggs and larvae (LAR-vee), or young animals that must change form before becoming adults; other jellies; and small crustaceans (krus-TAY-shuns), which are water-dwelling animals that have jointed legs and a hard shell but no backbone.


Jellyfish are not threatened or endangered.

Additional topics

Animal Life ResourceJellyfish, Sponges, and Other Simple Animals