Desert fish have been isolated from the world for 50,000 years, with only 38 left, and what happened

Because the massive use of groundwater by humans has affected the survival of desert fish, ecologists decided to build three sanctuaries in a devil's cave environment to ensure the survival of desert fish.

Isolated for 50,000 years and with only 38 left, the desert fish are now protected by scientists and are now critically endangered.

They are still alive today, but there are not many of them, and some of them are extinct.

The origin of the name desert fish is because it lives in the desert, and the only place in the world is the United States"Death Valley"Death Valley is located in North America at the lowest altitude, hottest temperature, and driest on the surface, and its living environment is extremely harsh, with only a few creatures survived, such as rattlesnakes and geckos.

However, since desert fish are fish after all, they also need to be kept in need of water, and there is a small puddle in the bottom of Death Valley, and in such a small space, life that can survive for up to 50,000 years is born.

According to relevant scientific investigations, all 38 desert fish in the world are located here, and no new life has been bred or reduced. Desert fish are at risk of extinction as rainfall begins to decrease in the environment in which they live, and there is no other source of water from the outside world to replenish their energy. Vertical skill.

He survives in the water, but he only needs very little oxygen, and he also survives in the heat and doesn't need much food.

Due to the long-term shortage of water in the desert area, and the climate is drier than that of the tourists, the desert fish are confined to small ditches deep underground, and in order to adapt to this environment, their bodies are constantly mutating, so that they can survive in the harsh environment.

Desert fish is a kind of creature that lives in the Devil's Cave, and the Devil's Cave can block the loss of some of the water vapor of the first grandson, and also let a part of the small pond remain in the cave, which is enough to provide the raw and hidden celery storage conditions required for the stove to match the desert fish.

For us, the desert is the harshest living environment**, few creatures can survive here, the most difficult survival condition is water, but in the most barren area of North America, there is a desert valley with the lowest altitude, the most boring and the hottest area, called "Death Valley", and there is a cave called "Devil's Cave" 96 kilometers to the east, where a school of fish live.

In the United States, there is such a magical lake in Death Valley. The lake was formed 2 million years ago, when there was abundant rainfall, abundant resources and many biological species. However, as the weather changes, the rain gradually decreases, the water level drops, and eventually only a small pond remains in the whole lake.

Moreover, all the other creatures migrated away, but a school of fish was stranded and lived in isolation. After tens of thousands of years of evolution, the fish in this small pond eventually adapted to this environment of food deficiency and extremely low oxygen content, and gradually evolved along a common evolutionary path. Until now, this fish has been a separate species, reproductively isolated from other species in the world.

This type of fish is also named desert fish.

Unlike other fish species, desert fish are found only in this small puddle. Once this little puddle dries up, so does the desert fish. When the desert fish were discovered, there were hundreds, but with the intervention of humans, there are now only 38 desert fish.

Perhaps after a few decades, the desert fish will become extinct. However, the presence of desert fish does not affect other species, and due to their isolated environment, it has little impact on the biological chain. However, this does not mean that their existence is of little significance, they are the best proof of the evolution of species, and they are also the best place for us to appreciate the power of nature and feel the magic of nature.

The behavior of desert fish depends on the environment of the habitat, and the excessive dependence on the single habitat will make the desert fish easy to extinction, because the environment of the devil's hole is getting worse and worse, and the water resources are becoming less and less, scientists have imitated a living environment of the desert fish, and built a "new home" for them, at the beginning they were afraid that the desert fish could not adapt to the new environment, but after 5 years, people found that the performance of the desert fish was very different, and the size of the desert fish in the artificial environment was adjusted with the change of the environment. It's bigger than when I first put it in.

Because it is important to keep desert fish in a suitable place for them to grow, so that they do not go extinct.

Because the desert fish has extremely high requirements for the living environment, it cannot easily leave the place where it is adapted to at the moment.

Because once they leave their original living environment, it will be difficult for them to survive in other places.

According to the common sense of ordinary people, fish must have water to survive, so for them, they generally live in lakes and seas and other places with abundant water, and no one can imagine that fish can survive in the desert. But now there is a species called desert fish, for which the hot water of the desert is actually their habitat. So after 50,000 years of isolation from the world, there are only 38 left in the world"Desert fish"How do they survive?

Many people think that desert fish live in the desert, but this idea is wrong, because fish cannot live without water. Their habitat is actually a cave in a desert area, where there is a small amount of water and their numbers are scarce. It is speculated that desert fish drifted to this cave tens of thousands of years ago with the lake and were able to survive and thrive here, but as the water level dropped, the number of surviving desert fish became smaller and smaller.

So as the water content in the caves is getting less and less, what is the living environment of desert fish today? Now there is less water in the cave, so the oxygen content in the water is also extremely low. But for the pure desert fish, they have long been adapted to this harsh environment, and for them now, even if they go to a place with more oxygen content, they will not adapt to the environment there, because they have adapted to such an environment through thousands of years of evolution.

The temperature in the Devil's Cave where desert fish live is also very high, basically maintaining around 33 degrees. But this high temperature also allows desert fish to adapt to survival, because they are small and not affected by the high temperature of hail. However, in recent years, due to people's environmental pollution and the intrusion of outsiders, the living environment of desert fish has been further exacerbated, making their already scarce population become smaller and smaller, which is also a situation that many scientists have been trying to change.

They are very hard to survive in the desert, and this fish must be in a place where there is a water base, so they are usually active in the search for water in the Fengling desert.

When people think of fish, they think of water, because fish live in water, and if they leave the water, it is equivalent to death. And I'm going to break the convention for everyone, there is actually a kind of fish in the world that does not live in the water, but in the desert, speaking of which, many friends must suspect that they heard it wrong, of course not.

In fact, there are fish that live in the desert, and after 60,000 years in the desert, there are only 38 left in the world. When it comes to quantity, it's really very little. At the same time, it is also the most precious fish in the world, this fish, called the medaka, is not large, only centimeters, but when it swims, it is indeed very flexible.

They live mainly in the arid regions of the United States, which is the Valley of Death.

The temperature in this place is unusually high, and in the summer months, the temperature can reach 50 degrees Celsius. Therefore, they are also known by the Americans, the strange fish of the desert, and the Americans are very fond of this fish. Many creatures cannot survive in this place, but the medaka is different, it can survive for 60,000 years, which shows that the vitality of the medaka is so tenacious.

Although the vitality is tenacious, it still seems small in front of humans, and the destruction of human beings and the impact of the environment still cannot change the fate of the medaka. The discharge of sewage and global warming have caused many animals to move, and some have to bow to fate and eventually die. It is understood that the number of medaka used to be in the triple digits, but now it has become 38, which is really a pity.

And scientists, in order to make the medaka reproduce better, let them simulate the environment in the devil's cave and carry out artificial breeding, hoping that they can survive successfully. I really hope that everyone can pay more attention to environmental sanitation, start from the small things around you, give the medaka and more animals and plants a complete home and healthy life, and hope that the relevant departments will strengthen the protection of these rare animals!

Do you have anything to say about this?

This fish is the medaka, which can adapt to the environment inside the desert and has survived in the desert for nearly 60,000 years.

There is a national treasure fish that has been talking on the earth for 50,000 years, this fish is called desert fish, this fish is called devil's hole fish, and it can live for decades without water.

<> "There are only 38 desert fish left in the world, who defeated it?"

In fact, as early as 1966, they were listed as endangered species by the United States, but human beings tried all kinds of ways to protect them, and their numbers are decreasing, from three digits to 38 today, because the living environment of desert fish is already short of water, and the local rainfall is very small, coupled with the increase in domestic water use in the surrounding area, the groundwater level near has declined, which directly affects the number of desert fish species.

According to geographers, the depth of the Devil's Cave is at least 130 meters, formed about 500,000 years ago, desert fish appeared 50,000 years ago, perhaps due to ** and other factors that caused the collapse of the cave, desert fish fell into this small pool, they will also feel very uncomfortable when they first come here, but the desert fish survived here with their tenacious vitality, and after tens of thousands of years of evolution, they have completely adapted to the environment here, But because they are too adaptable to the environment here, they can't adapt to the outside environment.

Desert fish live in the desert and live in the desert, and even if they become extinct, it seems that it will not affect other creatures. In fact, the protection of desert fish is not because of how important they are, but about the genetic diversity. All kinds of organisms on the earth carry different genes, although these genes seem to have no use now, but perhaps many years later, human beings can lead human beings to live better through the genes of living things, and it is our responsibility to protect the creatures on the earth.

The environment on the earth is constantly changing, because species must adapt to the environment if they want to continue to survive, which is also the essence of Darwin's biological evolutionary theory, genetic mutation or mutation is the first priority, so the population is large, its gene pool is stable, the resistance is strong, and it can better adapt to the environment. But if the population is too small, it will easily be eliminated naturally, and the rate of evolution will be slow. There are such creatures on the earth, and they are desert fish, as the name suggests, they are fish that live in the desert.

When the species was first discovered, there were about 500 members, all in a pool, but later reached a minimum of 38 in 2016 and were almost in danger of extinction.

<> isolated desert fish, there are only 38 left at the lowest, and may be disappearing at an accelerated rate Isolated desert fish There is a mysterious place in the California desert called Death Valley, and there is a very ordinary-looking cave in Death Valley, called Devil's Cave, which is home to desert fish. As a highly endangered species, their numbers have remained around 100-500, but they fluctuated widely, with scientists counting their numbers dropping to 38 in 2016.

Known as the killifish, this desert fish has been described by scientists as an evolutionary miracle and is only found in Death Valley, where the water is only centimeters deep. Although they have lived for 60,000 years, they are less than 100 years old. As recently as 1990, there were more than 500 of these fish, but by 2006, only 38 remained.

It should be about the same by now, maybe even less.

Cut off from the rest of the world, only 38 desert fish remain. Is it necessary to save them? Or let it die because they live in deserts with high temperatures and little water, high temperatures all year round, and low oxygen levels in the water.

While they have adapted well to changes in their environment over tens of thousands of years, small changes in their environment are likely to have a huge impact on their survival, and if humans do not intervene, they could be wiped out in the next few years.

If the environment becomes harsh, these 38 desert fish will become extinct, and as the lake dries up, the creatures that live here will die. When the lake is still connected to the outside world, it swims to other waters and continues to survive in other waters; Some creatures were unfortunate enough to not swim to other bodies of water in time to end up disappearing.