Jellyfish belongs to invertebrate coelenterates, which are a kind of jellyfish, belonging to the genus jellyfish, which belongs to the family Rhizoma jellyfish, Phyllostachyphus, Phyllostachyphus. Although they are a kind of jellyfish, they are quite different from jellyfish. Jellyfish is large in size. Although it is poisonous, the toxin will not affect human body after cooking at high temperature.

In addition, jellyfish have no special respiratory organs and excretory organs, and their whole body is composed of cells. Of course, these cells will surround their gastric circulation cavity and pass through their mouth, so that the gastric circulation cavity can connect with the outside world. As coelenterates, they have neither gills and lungs, nor brains and hearts, so they belong to a relatively low marine life.

The whole jellyfish looks like an inverted bowl or umbrella. The outward protruding side is called the upper umbrella cover, while the concave side is called the lower umbrella cover. There is a drooping tube in the middle of the lower umbrella cover, which is called hanging lip, and there is a circle of tentacles at the edge of the umbrella. Most jellyfish bodies are transparent, and some are mixed with orange or cyan. They have no hands and feet, only tentacles, so when they move, they all rely on the current in the ocean, and then use their tentacles to change direction, and then they can complete their activities.