1, poisonous snake fish

Poisonous snake fish, also known as viper fish, is a small, warm, deep-sea luminous fish, non-toxic, with a silvery red body and a body length of up to 35 cm. It is widely distributed in the East China Sea, South China Sea, Japanese and Pacific Ocean of China. Carnivorous animals, because of their large and sharp teeth and extremely elastic stomachs, can swallow prey as big as themselves.

2. Ghost fish

The ghost fish is actually a sea squirt, which is a chordate animal covered with colloid in the whole province. Most of them live in the cold waters of the southern hemisphere, with a body length of about 1 1 cm and can emit light.

Similar to jellyfish, it is translucent as a whole, and it is the main member of providing greenhouse gases to the ocean. It often gathers and survives, and it can't do harm to human beings. It has an extremely special blood circulation system, and its strange appearance is the reason why it is considered as a ghost fish.

3. Swallow eels

Swallowing eel, also known as broad-throated fish, belongs to the class Actinidia of Chordata. This fish is a deep-sea fish, which usually has two kinds, one can reach 1.6 meters and the other can reach 75 centimeters. Because its body structure can't withstand the change of water pressure, it can only live at 6000 feet in the deep sea. As the name suggests, this eel has a very strong flexibility with its jaw connected to its head.

4. King Soup Squid

King Physalis alkekengi is an animal belonging to King Physalis alkekengi, also known as Megacephalus. King Physalis alkekengi is mostly distributed in the sea area around Antarctica, with the maximum length of 10 meter. It is a giant squid living in the deep sea, the largest squid among invertebrates in the world, and a very active predator.

5, sharp-toothed fish

Sharp-toothed fish is a chordate animal, so it is called sharp-toothed fish because of its long teeth. Under the terrible appearance, the longest sharp-toothed fish is only 15 cm, which can't do great harm to human beings. They mostly live in tropical and temperate seas, and generally inhabit 500-2000 meters. The recipes of sharp-toothed fish are diverse and miscellaneous, and they can even hunt fish slightly larger than them as food.

Characteristics of deep-sea fish:

Deep-sea fish can bear such great pressure on the seabed: in order to adapt to the environment, the physiological function of deep-sea fish has changed greatly. These changes are reflected in the muscles and bones of deep-sea fish. Due to the huge water pressure in the deep sea environment, the bones of fish become very thin; But also easy to bend; Muscle tissue becomes particularly flexible and fiber tissue becomes surprisingly fine.

More interestingly, the fish skin tissue becomes only a very thin layer, which can make the physiological tissue in the fish full of water and keep the balance of internal and external pressure. This is why deep-sea fish will not be crushed under such great pressure.