Jellyfish
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| Jellyfish or jellies are the major non-polyp form of individuals of the phylum Cnidaria. They 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 jellyfish inhabit freshwater. Large, often colorful, jellyfish are common in coastal zones worldwide. 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. For more information, visit the Wikipedia entry Get back to Cnidaria | ||
| Atlantic sea nettle | Benthocodon pedunculata | Black sea nettle |
| Diplulmaris antarctica | Flame jellyfish | Jelly blubber |
| Mauve stinger | Moon jelly | Northern sea nettle |
| Pacific sea nettle | Purple-striped jelly | †Quadrimedusina |
| Spotted jelly |  Upside-down jellyfish
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