The box jellyfish is as fast as an olympic swimmer with 24 eyes.
Pantyhose are also an effective protection against box jellyfish stings.
But perhaps you should turn your concerns to the Australian box jellyfish, instead.
The world of the box jellyfish is a pretty frightening one, but in many cases, it's just a plane ride away.
An Australian box jellyfish called the sea wasp can kill a grown man in a matter of seconds or minutes.
Caution, however, is required when swimming from November through March as box jellyfish are present during those months.
The box jellyfish's nervous system is also more developed than that of many other jellyfish.
As of 2007, at least 36 species of box jellyfish were known.
The most deadly cnidocytes (to humans, at least) are found on the body of a box jellyfish.
Tamoyidae is a family of box jellyfish within class Cubozoa.