Interesting facts about the graceful sea creatures
Because of their almost transparent body, jellyfish appear like otherworldly creatures. Some find it fascinating, others repulsive. Most jellyfish are harmless to humans!
Only the Australian Sea Wasp and the Portuguese Galley are really dangerous. The latter also occurs in the Mediterranean area, you should definitely take any warnings seriously and not enter closed beaches. But don't worry: this rarely happens.
The transparent sea dwellers are fascinating: there are over 2.500 different species spread across all the world's oceans. They have existed on this planet for 670 million years. Biologically, they belong to the cnidarians and are related to corals, among other things. Their tentacles are equipped with stinging cells that rupture when touched for defense and prey capture. The poison is injected into the skin at lightning speed by means of tiny injections. This process is comparable to touching a nettle.
All jellyfish species are 99% water. They differ in size, shape, color and their danger to humans.
The umbrella-shaped jellyfish are predominantly plankton-eating. They therefore do not need strong poison, which is why touching an umbrella jellyfish is not dangerous for humans. However, the skin may itch or burn. You should avoid the cube-shaped jellyfish, because they have fish on the menu. Therefore, in order to stun or kill their prey, they need stronger venom. Humans also notice this when they touch it.
Our tip: Never rub the affected area. More nettle capsules burst open. It is best to sprinkle the irritated skin with sand.
Jellyfish also have predators. Especially the less poisonous, plankton-eating specimens are a treat for fish and crabs. In China and Japan they are eaten dried, fried or in a salad.
By the way, jellyfish have an admirable ability: They can recreate damaged or torn off body parts. So-called supercells make this possible. They transform into new cell types from an embryonic stage.
A wonder of nature!
