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'''Jellyfish''' are a kind of translucent inverterbrate [[animal]] that live in the [[ocean]]. Despite haveing '[[fish]]' in their name, Jellyfish are not actually fish, they are members of the [[phylum]] [[Cnidaria]], with [[corals]], [[hydras]], and [[sea anemones]], and the class [[Scyphozoa]]. To avoid confusion, they have also been called 'Sea Jellies'. or just 'Jellies'. Jellyfish are often consumed in Asian countries, especially dried and reconstituted. Jellyfish salad is considered a [[Viet Nam|Vietnamese]] delicacy. (See [[Jelly]]).
[[Image:Jellyfish.jpg|right|thumb|Jellyfish - among the deadliest of animals, yet also among the most delicate]]
'''Jellyfish''' are a kind inverterbrate [[animal]] that live in the [[ocean]]. Despite having '[[fish]]' in their name, Jellyfish are not actually fish, they are members of the [[phylum]] [[Cnidaria]], along with [[corals]], [[hydras]], and [[sea anemone]]s, and the class [[Scyphozoa]]. To avoid confusion, they have also been called 'Sea Jellies'. or just 'Jellies'. Jellyfish are often consumed in Asian countries, especially dried and reconstituted. Jellyfish salad is considered a [[Vietnam]]ese delicacy.
Jellyfish can survive in [[oxygen]]-poor water because they have a [[symbiosis|symbiotic]] relationship with [[algae]], which produce oxygen inside the jellyfish.<ref>http://www.microscopy-uk.org.uk/mag/artnov04macro/kfjellyfish.html</ref>
Jellyfish have sharp stingers in their [[tentacle]]s that have stingers to catch food, or for defensive purposes. For this reason they are sometimes called sea wasps or sea bees.
Jellyfish have sharp stingers in their [[tentacle]]s that have stingers to catch food, or for defensive purposes. For this reason they are sometimes called sea wasps or sea bees.
Jellyfish are found on every [[continent]] in the world, except [[Greenland]] and [[Antarctica]]. Jellyfish have been known to kill humans. [[Species]] of jellyfish include the Sea Nettle Jellyfish, Flower Hat Jelly, and the Blow Jelly.
Jellyfish are found off the coast of every [[continent]] in the world except [[Antarctica]].<ref>Lotan, Amit,[http://www.nidaria.com/news/52-55%20suncare%20SPC0406.pdf Playing the Clown] ''Soap, Perfumery & Cosmetics'' April 2006, p.53</ref> Jellyfish have been known to kill humans. [[Species]] of jellyfish include the Sea Nettle Jellyfish, Flower Hat Jelly, and the Blow Jelly. The most deadly animal currently known is the diminutive "box jellyfish" of [[Australia]], or "irukandji".
In 1965, the film ''The Sting of Death'' (a reference to [http://scripturetext.com/1_corinthians/15-56.htm 1 Corinthians 15:56]) was released, documenting in dramatic fashion the life and death of jellyfish in the ocean.
In 1965, the film ''The Sting of Death'' (a reference to [http://scripturetext.com/1_corinthians/15-56.htm 1 Corinthians 15:56]) was released, documenting in dramatic fashion the life and death of jellyfish in the ocean.
Perhaps one of the most remarkable features about jellyfish is just how delicate they are with no skeletal structure, especially considering how deadly they are. In fact, 95% of the jellyfish's body consists of [[water]]. A jellyfish does not have a [[brain]] or a [[central nervous system]], nor does it have a [[circulatory system]] or [[blood]].
==References==
==References==
*[http://icwales.icnetwork.co.uk/0100news/0200wales/tm_headline=welshman-cheats--death-by-jellyfish-&method=full&objectid=18271639&siteid=50082-name_page.html Welshman cheats "death by jellyfish"], Dec 16 2006
*[http://icwales.icnetwork.co.uk/0100news/0200wales/tm_headline=welshman-cheats--death-by-jellyfish-&method=full&objectid=18271639&siteid=50082-name_page.html Welshman cheats "death by jellyfish"], Dec 16 2006
<references/>
== See also ==
*[[Amphibian]]
[[Category:Zoology]]