Monk's hat jellyfish (Portuguese warship), a tube jellyfish. It can be found on beaches around the world, most commonly in the Gulf Stream of the North Atlantic Ocean and in the tropical and subtropical regions of the Indian and Pacific Oceans.
Portuguese man-of-war
The body is a pale blue transparent sac-like floating sac, with a blunt rounded front end and a blunt posterior end, and the tip is raised in the shape of a dorsal peak, which is shaped like the hat of a monk monk, and is named the monk's hat jellyfish.
The maw on its body can make it float on the surface of the water, the bladder is 9 to 30 cm long, and it can extend more than 15 cm on the surface of the water, and it can inject gas into the maw, which has a high carbon dioxide content, up to 90%. The monk's hat jellyfish will ensure that the swim bladder is moist to survive, so it will often flip slightly to keep the surface of the swim bladder moist, and in order to avoid the bladder from being attacked, it will slightly deflate and let the bladder sink to the bottom of the sea.
There are tentacles under the bladder, the longest can extend 22 meters, the terrible thing is that these tentacles carry toxins, it is okay to be stung to the next two times, but the monk hat jellyfish is a social organism, once stung is thousands of times more terrible than the poisonous snake, and belongs to the neurotoxin, with the increase of time, the role of the toxin gradually aggravated, the injured in addition to suffering severe pain will also appear sudden drop in blood pressure, breathing difficulties, gradual loss of consciousness, general shock, and finally will die due to pulmonary circulation failure, abnormal pain.
Of the swimmers who were stung by this monk-hat jellyfish in 2000, 68 percent died. A considerable part of the 32% of the survivors are disabled by this, and a very few lucky ones can retreat from the clutches of this "jellyfish", and the toxicity of the monk's hat jellyfish is very violent, and any stinged person will have a terrible whip-like scar on his body, which will not retreat.
After being stung
So when you see this beautiful jellyfish, don't touch it.