What is Irukandji jellyfish?
[[File:Irukandji-jellyfish-queensland-australia.jpg|thumb|220px|Irukandji jellyfish]] The '''Irukandji Jellyfish''', ''Carukia barnesi'', is a [[species]] of [[jellyfish]]. It lives in the waters of northern [[Australia]]. It is a very deadly jellyfish. The Irukandji is only 2.5 [[centimeter]]s (with bell and [[tentacle]]s) in [[diameter]].<ref>{{Cite web |url=http://goaustralia.about.com/cs/practicalinfo/a/irukandji.htm |title=Irukandji Jellyfish – Beware the Deadly Irukandji Jellyfish |work=about.com |accessdate=7 April 2010 |archive-date=26 August 2009 |archive-url=https://web.archive.org/web/20090826062641/http://goaustralia.about.com/cs/practicalinfo/a/irukandji.htm |url-status=dead }}</ref> This makes it hard to find.<ref name=irukandji>{{Cite web |url=http://www.irukandjijellyfish.com/ |title=Irukandji Jellyfish |work=irukandjijellyfish.com |accessdate=7 April 2010 |archive-date=1 January 2014 |archive-url=https://web.archive.org/web/20140101105148/http://www.irukandjijellyfish.com/ |url-status=dead }}</ref> The Irukandji is believed to be the most [[poisonous]] [[creature]] in the world. Some people are not sure if that is true.<ref name=irukandji /> The Irukandjis' name comes from an Australian [[Indigenous Australians|Aboriginal]] [[tribe]]. The tribe lived in the [[Palm Cove, Queensland|Palm Cove]] region of [[North Queensland]]. When the Irukandji people were stung by the Irukandji, there are many [[symptom]]s.<ref name=irukandji /> This includes:<ref name=ik>{{Cite web |url=http://www.reef.crc.org.au/publications/brochures/Irukandjisyndrome.htm |title=Irukandji syndrome |work=reef.crc.org.au |accessdate=7 April 2010 |archive-date=17 March 2014 |archive-url=https://web.archive.org/web/20140317195724/http://www.reef.crc.org.au/publications/brochures/Irukandjisyndrome.htm |url-status=dead }}</ref> * lower back pain * muscle [[cramp]]s * [[vomit]]ing * restlessness * [[anxiety]] Sometimes, people may also get [[fluid]] on their [[lung]]s ([[pulmonary oedema]]), [[hypertension]], and [[heart]]