The seaside on the west side of the Borean Tundra.
The main component of the jellyfish body is water, and it is composed of two germ layers, the inner and outer germ layers. There is a thick mesoglea between the two layers, which is not only transparent, but also has a floating effect. When they are moving, they use the reflection of water spray in their bodies to move forward. From a distance, they look like round umbrellas floating rapidly in the water; some jellyfish's umbrellas also have various patterns. In the blue ocean, these swimmers The moving jellyfish of different colors look very beautiful.
They can be found in tropical waters, temperate waters, shallow waters, oceans about 100 meters deep, and even freshwater areas. Jellyfish existed as early as 650 million years ago, and they even predate the dinosaurs. There are more than 250 species of jellyfish in waters around the world, and they are distributed in waters around the world. All live in the ocean.