

The venom in the tentacles of the box jellyfish affects the nervous system within minutes and can paralyze its victim and can cause cardiac arrest within one or two minutes. In Australia, they usually live in the coast of northern Australia, though during the warmer months of summer, these invertebrates swim closer to the shore in order to breed in estuaries. Where are they found?Īustralian Box Jellyfish reside in the Indo-Pacific region, though they can also scarcely be found in tropical and sub-tropical oceans.

Only the turtle is capable of standing the jellyfish's sting. They use it as a defense against other fish and prey to paralyze their victims. The box jellyfish can have as many as 5000 tentacles that can reach 2 meters in length.

They owe their name due to the shape of their top, which is shaped as a cube and has four corners instead of being round like most jelly fish. Who would have thought that the most dangerous animal in Australia was a Jellyfish? This species, also known as sea wasp, can grow to as big as three meters (10 ft).
