How can Africans dig fish from the soil?

I just watched a video. It was probably that several African brothers took a hoe and dug things out of the soil. When they tore it open, it was a fish. How did the fish survive and get into the soil?

I'm afraid the only fish that can survive such a drought is African lungfish. The swim bladder of lungfish has a special opening in the pharynx to communicate with the esophagus. The swim bladder is subdivided into many smaller air sacs, and it has two swim bladders with a large number of thin-walled blood vessels. When blood flows through these blood vessels, it can absorb oxygen from the air of the swim bladder, so that the lungfish can breathe directly in the air through its mouth. The atria and ventricles of lungfish heart are partially separated, almost forming a structure of two atria and two ventricles (ordinary fish only have one atrium and one ventricle), which can separate deoxygenated blood and oxygenated blood and transport them to different body parts, and develop two ways to adapt to gill breathing and lung breathing, just like primitive amphibians.

The upper part is the blood circulation mode of breathing with lungs, the lower part is breathing with gills, and the black part is oxygen-containing blood flow. The gill atrophy of adult lungfish is serious, and it is no longer possible to complete breathing only by gills. If you stay underwater for a long time, you can drown, which may be a rare fish that will drown.

When rivers and ponds are about to dry up, lungfish will dig holes with their mouths and twist their bodies to expand a bulb-shaped space, and then secrete mucus to seal the caves, leaving only small holes above them for breathing. When the water disappears and the mucus dries up, they will be isolated from the outside world. At this time, lungfish entered a dormant state, stopped breathing, and its metabolism dropped to a very low level, and it could maintain the most basic vital signs by consuming its own muscle tissue. Lungfish spend the dry season, wait until the next rainy season, and still have enough strength to climb to the nearby pond. It is said that this dormant state can last for up to 4 years.

The lungfish keeps its head up in the cave and is surrounded by a cocoon-like shell. South American lungfish can only dig holes in mud, but can't make mucus protective sheath. Australian lungfish can't breathe except through its mouth and has only one swim bladder.

However, relying on mountains to eat, local Africans will pick up hoes to dig lungfish when they want to eat fresh fish. This tiny vent left on the ground exposes what's underneath, excavation. . .

Note that this cocoon also has a small vent.

alas, those that can keep fresh on a hot day still come with their own packaging. . . It's really a big live fish when it's disassembled ~ ~

Lung fish, which is in a high dormancy state at room temperature, has aroused the interest of biologists and medical scientists. If patients can go into dormancy in a critical state, they can have more time to wait for an adequate treatment plan, which is even more important for astronauts performing deep space missions. After injecting rats with substances extracted from the dormant lungfish brain, their body temperature dropped by 5%, their metabolic rate dropped by 33%, and they became drowsy easily, and the rats stopped eating on the second day after receiving the injection. If the freezing function can be combined again, it is indeed possible to realize one-time dormancy for several years.

Since fish can land, real amphibians can't show weakness ~ ~ There are many desert frogs that can dig holes in the arid environment in central Australia. This little guy is not big, but he can absorb a lot of water and store it between his skin and muscles, so he always looks round.

A small puddle is enough, and the tadpole's development time is relatively short. When the rainy season passes and the drought comes, it will dig a hole almost 3 cm deep and sleep in it, waiting for the next rain. Its skin, like a waterproof coating, can protect frogs from losing water, and its life span can be up to 7 years in such a harsh living environment.

Similarly, nothing that can be used can escape from the clutches of human beings. When the local natives can't find water on a long trip, they will dig their caves and drink the water stored in their bodies.

It seems that the water content of this little guy with big eyes is really not low.

It is estimated that there are more than 5 million species of life on the earth, and about 1.7 million species have been named, and there are countless magical survival skills (for example, a large number of branchial fishes have a special organ that allows them to breathe air directly, and they will not die easily as long as they are not dry after leaving water); However, it is difficult to get to know all kinds of animals in related majors, especially in life, which brings room for using these characteristics to perform and even deceive people (for example, in my last answer, I used the animal's instinct of playing dead to perform the super power of hypnotizing animals).

However, lungfish's dormancy skills are really against the sky, so a more effective scam can be designed.

1. Daxian led his followers to choose a land of geomantic omen in the arid countryside and hired people to build a thatched cottage with earth walls;

2. It is not particularly difficult to hide a few dormant lungfish in the pre-made adobe, and it is not particularly difficult to make the lungfish adobe after several experiments;

3. After preaching the scriptures for several days, at a certain moment, the gods suddenly possessed them: you are sincere and sincere, and you have a sense of merit, and you have specially given a number of fairy fish to ensure peace and wealth;

4. Daxian danced with excitement, and ordered the people to splash water on the wall and water it with water pipes according to the Oracle;

5. After 3: 5, the wall turns into mud, and you can see some live fish coming out. . .

6. When everyone was crying with joy and wanted to go home with the magic fish, five big and three thick landlords (or homeowners) appeared: You cut off my fortune and ruined my earthen house. Who dares to touch a fish scale? Don't talk nonsense, if you want to take the fish away, it's 5 thousand each, or I'll shoot you to death with a spade one by one and let you go away with your sins. . .

or in the cold winter, you can use frozen "dead" forest frogs to show miracles.

After "accidentally" picking it up outside the door, Daxian was merciful and recited scriptures for him for several hours in the house, which just thawed slowly. After feeling the earth move, the frozen frog came back to life and was alive and kicking. . Your merits are boundless ~ ~ exactly. . . Do you have your wallet?