The jellyfish is considered as one of the most dangerous animal in the world.Box jellies,also called as sea wasps and marine stingers,live primarily in coastal waters off Northern Australia and throughout the Indo-Pacific. They are pale blue and transparent in color and get their name from the cube like shape of their bell.
Their venom is considered to be the most deadly in the world,containing toxins that attack the heart, nervous system,and skin cells.It is so overpoweringly painful that human victims have been known to go into shock and drown or die of heart failure before even reaching shore. Survivors can experience considerable pain for weeks and often have significant scarring where the tentacles made contact.