Therefore, how to prevent hunters from discovering themselves is a lesson that marine animals must learn in order to survive. Many marine animals have evolved nearly transparent bodies for this purpose.
1, glass squid
The glass squid is an almost transparent marine animal, living in the ocean from 200 meters to 1000 meters. They lived near the sea when they were young, and gradually sank into the depths of the ocean as they grew older.
The only weakness of this squid is its big black eyes, which are more obvious because it can hardly find its body. In order to make up for this defect, the glass squid can emit weak light to minimize the shadows around the eyes.
2, glass octopus
The glass octopus is about 45 cm long and lives in the depths of the ocean from 300 meters to 1000 meters. Except for eyes, digestive system and nerves, their bodies are almost completely transparent. They are like a mass of gel in a raging sea. In order to reduce the probability of predators, the glass octopus even evolved its eyes into slender shapes.
3. Sea bass
This is a very primitive animal that looks like a jellyfish, but in fact they belong to a distant relative of vertebrates. They have breathed through their gills, but they don't have a complete mouth. When swimming, they open their mouths, inhale seawater, and then use their barrel-shaped bodies to filter plankton in the water.
4. Deep-sea floating silkworm
This caterpillar is not only transparent, but also emits blue fluorescence. They are about 2 cm to 4 cm long and spread all over the earth's oceans. These creatures have dense flagella and look like deep-sea centipedes. When in danger, they will release luminous particles to attract predators and take the opportunity to escape.
There are many miracles in the world, especially the deep sea that human beings have not fully explored, and there are many incredible things.