Some examples of coelenterates include jellyfish, anemones and coral. Historically, scientists used the term “coelenterate,” which refers to the cavity-like bodies of the animals, to identify the phylum now called cnidar... More »

Coelenterates are soft-bodied organisms such as jellyfish, anemones, coral and hydras and are characterized by a gelatinous body, tentacles and the presence of nemadocysts or stinging cells. Their body structure is relat... More »

The family of Cnidarians consists of jellyfish, sea anemones and corals, and hydroids and siphonophores. The Cnidarian family includes familiar species such as moon jellies and sea urchins as well as exotic red corals an... More »

Sea anemones have the potential to live from 60 to 80 years or more. As they do not age, the Cnidarians are able to live indefinitely, though they often fall victim to predators long before they reach their expected life... More »

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Sea anemones can move in two distinct ways, either by using their single powerful foot to glide slowly across surfaces or by swimming with the current by flexing their muscular stalk. Anemones appear immobile and most do... More »

Some unusual types of sea animals include the siphonophores, colonies of animals that superficially resemble jellyfish; sea anemones, animals that look like flowers; and the sea mouse, which is a bristly worm. Siphonopho... More »

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Coral polyps, the organisms responsible for constructing reefs, are related to sea anemones and jellyfish, thus placing them under the kingdom Animalia. The base of the coral polyp features its protective limestone skele... More »