Irukandji Jellyfish
Australia

An excellent professional video on the Box Jelly's tiny toxic cousin, Irukandji.
By National Geographic, uploaded to YouTube April 03, 2009.

Jellyfish Avoidance Advice | Australia Pictures | Australia Guide

More Dangerous Animals Videos | Australia Map

Irukandji (Carukia Barnesi and several other unidentified species that produce Irukandji Syndrome) - lurks in the waters of Northen Australia, mostly near Cairns and the Great Barrier Reef. Irregular sea currents can easily move it to the shore. Irukandji is extremely painful and occasionally deadly and has been seen as far south as Brisbane. It's mostly a problem from November - May, but has been recorded in all months except July and August..More.