Interesting facts about jellyfish

In the meantime, there is no need to know about it. ”

Jellyfish are mysterious and very beautiful inhabitants of the seas and oceans of the planet Earth. Meeting with them can be fatal for a person, however, people constantly strive to research them and carefully observe their lives. Jellyfish are one of the most ancient inhabitants of the planet, which have not yet been fully studied, in particular, due to the fact that some of them live at depths of up to 10 thousand meters.

What's interesting is that:

- Jellyfish are a subtype of stinging organisms. Organisms of this subtype are divided into classes of scyphoid, box jellyfish and stavromedus;

- In most cases, jellyfish swim freely in the water column, however, some hydroid polyps have sedentary jellyfish individuals that do not separate from the colony. It is also believed that jellyfish individuals are constantly in the colony of some siphonophores;

- Scientists still know very little about jellyfish, in particular, as a creature without a brain, but with eyes, it can navigate in pitch darkness and actively hunt. There are as many as 24 eyes in the gelatinous body of the jellyfish;

- The poison contained in the stinging cells of a number of jellyfish is dangerous to humans. The best known in this respect is the box jellyfish Sea wasp (Chironex fleckeri Southcott, 1956), which lives off the northern coast of Australia and in the waters of Southeast Asia. The poison of the sea wasp is deadly;

- Medusa breathes with her whole body;

- The mouth opening serves the jellyfish both for eating food and for removing it. When the jellyfish does not completely digest the food, then its remnants are excreted through the same hole;

- Jellyfish are often used in medicine. Even in the Middle Ages, diuretics and laxatives were made from a certain type of jellyfish. And now, from the poison contained in the tentacles of jellyfish, drugs are being developed to treat lung diseases and regulate blood pressure;

- Farmers in the Caribbean use poison Physalium as a poison for rodents;

- Phosphors isolated from jellyfish are used for biochemical analysis. Jellyfish genes were transplanted into many animals, for example, mice, as a result, biologists were able to observe previously inaccessible processes. The result of the experiments was stunning - the rodents began to grow green hair;

- Jellyfish help fight stress. In Japan, jellyfish are bred in aquariums. Smooth, unhurried movements of jellyfish calm people, although keeping jellyfish is very troublesome and expensive;

- The first robotic jellyfish appeared in Japan. Unlike real jellyfish, they not only swim smoothly and beautifully, but, if the owner wishes, they can “dance” to the music;