The box jellyfish gets its name as they are bell shaped or cubed shaped with four sides being very prominent, thus the name box jellyfish. They may be as long as 20 cm on each side of the block, and have up to 15 tentacles on each corner. These tentacles are not actually triggered by any sort of touch, instead, this species of jellyfish stings because it senses a presence of a form of chemical on the outside of their prey.
A box jellyfish is very portable, with their bodies to propel themselves forward at speeds up to 4 knots. These types of jellyfish travel towards the shores in the calmer weather, and settle around the mouths of both creeks and rivers after the rain. It’s assumed that after a good rain, food is washed down to the jellyfish, and they intuitively realize this.
These jellyfish are also known as sea wasps and marine stingers. Their primary habitat is in water off of Northern Australia and in the Indo-Pacific. A box jellyfish has venom that is so deadly, it considered to be one of the worst poisons on the planet today. This venom is so strong that the toxins set about attacking the heart and nervous system, as well as skin cells. Their venom was developed so that it would immediately paralyze or kill its prey, and also so that there was less of a struggle. In this manner, the box jellyfish will take care of its delicate tentacles.
The sting is so deadly; help must be received immediately if one hopes to survive. The pain is reported to be excruciating, and people who do survive experience lots of pain for weeks to months after being stung. The sting is proportionate to the size of the person; for example, a young child needs less of a sting to cause dire consequences than an adult.