The Box Jellyfish are usually found in the warm coastal waters of Northern Australia and throughout the Indo-Pacific. The box jellyfish are transparent and pale blue in colour which makes them almost invisible in the water. The box jellyfish is one of the fastest marine creators, gliding through the water faster than an Olympic swimmer. The box jelly fish propels it's self forward in a jet like motion reaching between 3- 4 knots. It is well known for its cuboid shape and long tentacles. There are about 15 tentacles on each corner, giving you 800,000 stinging organelles per square centimetre on their tentacles. These organelles are so tiny that they can't be seen with the naked eye, only through a microscope.
The box jellyfish is the most venomous marine creature on the plant, it is so venomous that it can kill you within 2 minutes, if the tentacles of the box jellyfish are of 2 meters or more sting you. Their venom is considered to be among the most deadly in the world, containing toxins that attack the heart, nervous system, and skin cells. It is so overpoweringly painful, human victims have been known to go into shock and drown or even die of heart failure before even reaching shore. The pain of the sting is immediate and there is no pain relief. When stung, the symptoms include vomiting, headaches, agitation, profuse sweating and rapid heart rate, these symptoms could possibly lead to death. If someone is stung by a box jellyfish you should first clear their air ways and check breathing and circulation. The important thing is to keep the heart pumping. Some research suggests that by applying vinegar over the sting, it will deactivate the stinging organelles that haven't yet fired off venom, but if the the organelle has already fired off, don't apply vinegar as it causes it to squeeze out more venom into the body. Survivors of the box jellyfish can experience considerable pain for weeks and often have significant scarring on the skin where the tentacles made contact.