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Jellyfish

Jellyfish is an informal term used for members of the Medusozoa subphylum and similar animals such as those in the Ctenophora phylum. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are not mobile. They move by pulsating the bell. Their tentacles are armed with stinging cells and may be used to capture prey and defend against predators. Jellyfish are found all over the world, from surface waters to the deep sea.

This image shows a labelled cross-section of the flower hat jelly (Olindias formosus).

Illustration: Mariana Ruiz Villarreal.

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From Wikipedia, the free encyclopedia

Today's featured picture

Jellyfish

Jellyfish is an informal term used for members of the Medusozoa subphylum and similar animals such as those in the Ctenophora phylum. Jellyfish are mainly free-swimming marine animals with umbrella-shaped bells and trailing tentacles, although a few are not mobile. They move by pulsating the bell. Their tentacles are armed with stinging cells and may be used to capture prey and defend against predators. Jellyfish are found all over the world, from surface waters to the deep sea.

This image shows a labelled cross-section of the flower hat jelly (Olindias formosus).

Illustration: Mariana Ruiz Villarreal.

Other areas of Wikipedia

  • Community portal – Bulletin board, projects, resources and activities covering a wide range of Wikipedia areas.
  • Help desk – Ask questions about using Wikipedia.
  • Local embassy – For Wikipedia-related communication in languages other than English.
  • Reference desk – Serving as virtual librarians, Wikipedia volunteers tackle your questions on a wide range of subjects.
  • Site news – Announcements, updates, articles and press releases on Wikipedia and the Wikimedia Foundation.
  • Village pump – For discussions about Wikipedia itself, including areas for technical issues and policies.

Wikipedia's sister projects

Wikipedia is hosted by the Wikimedia Foundation, a non-profit organization that also hosts a range of other projects:

Wikipedia languages


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