Jellyfish are important plankton organisms in the aquatic environment.

The jellyfish is a very beautiful aquatic animal. Its body is shaped like a transparent umbrella, and the diameter of its umbrella varies from large to small, with the umbrella of large jellyfish reaching 2 meters in diameter.

The edge of the umbrella has some whisker-like tentacles, some of which can reach 20-30 meters in length.

The majority of them live in jellyfish fields. They electrocute their enemies with their tentacles and also produce jellyfish paste.

So how do jellyfish catch food?

When a jellyfish finds its prey, its tentacles immediately climb on the prey and shoot out venom, and the prey will be paralyzed and die quickly after being stung. The tentacles then hold the prey tightly, retract, and suck it in with the polyps under the umbrella.

Each polyp is capable of secreting enzymes that rapidly break down the proteins in the prey.

Does jellyfish have electricity?

The jellyfish's nerves are transmitted by weak electrical waves, but there is no external electricity.

Toxic jellyfish, such as box jellyfish, are poisonous not because of electricity, but because they have many poisonous stingers on their tentacles, which will extend hundreds of times into the human body when they come into contact with objects.

In addition, the jellyfish is beautiful and docile, but actually very fierce. Underneath the umbrella-like body, those long and thin tentacles are its digestive organs and also its weapons.

If you are stung by one, you will die of respiratory distress within a few minutes, which is why they are also known as killer jellyfish. Therefore, when you are stung by a jellyfish and have difficulty breathing, you should immediately perform artificial respiration or inject a cardiac stimulant.

Do jellyfish emit light?

There are fish and insects that glow, however, jellyfish glow is a strange thing, because jellyfish is a cellular animal with simple structure, no muscles and skeleton, 98% of its body is water, how does its light come out?

They swims in the sea, its body shows a spherical blue light, and the long tentacles behind it shine with a long, thin band of light, and as the jellyfish swims, its body bends and swings, the light is also very beautiful.

Do jellyfish have eyes?

Jellyfish do not have real eyes, but they have a primitive visual organ called the dot eye, which is similar to the compound eye of insects.

These eyes of jellyfish do not have a focal point for imaging, but like many lower animals, they can perceive light and shadow, and can also detect changes in the light of the external environment.

In the above article, after the introduction, I believe you have a clearer understanding of jellyfish. In fact, most of the jellyfish we know are beautiful, but very toxic. If you are not careful, you may put yourself in danger.

So when you encounter a jellyfish in the sea, try to avoid it or enjoy it from afar.