Larvae mature into polyps, which will then bud off and mature into young jellyfish.' An adult jellyfish is known as a medusa. Jellyfish belong to a group called Cnidaria, which also includes sea ...

And one hydrozoan, the immortal jellyfish (Turritopsis dohrnii), seen here in a water drop, has a life cycle that skips death: It reverts from a medusa back to a polyp. How, no one knows.

Most are free-swimming species with the characteristic bell-shaped body, also called a medusa. Cubozoans are more commonly known as box jellyfish. They differ from scyphozoan jellyfish because of ...

The infamous box jellyfish developed its frighteningly powerful venom to instantly stun or kill prey, like fish and shrimp, so their struggle to escape wouldn’t damage its delicate tentacles.

The second room, "The Jellyfish Passage," features a 10-foot tall archway filled with jellies and the 14-foot tall tank. In the third room, "Medusa Gallery," people can watch nearly 20 minutes of ...

Las vegas(KLAS)-SeaWorld San Diego has debuted its highly anticipated Jewels of the Sea: A Jellyfish Experience. The ...