Desert fish, isolated for 50,000 years, can only survive in harsh environments, why are they endangered?

The desert has always given people the impression of being deserted, and the main feature is that it is extremely scarce, there was once a truth, that is, it is better to give you gold in the desert than to give you a little water, and it is precisely this little water that nourishes a group of fish, yes, you did not hear it wrong, you can still see the existence of fish in the desert, and because of its rarity, so there are not many people who can see it so far.

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They are called desert fish, there have been unknown people who heard this name, thinking that they live in the sand of the desert, but this is not the case, although the water source is extremely precious in the desert, but there are still fish living here, so they are also regarded as treasures in the desert!

Survive in the harsh, but become a beautiful landscape of the desert

Fish living in the desert are not desert miracles, to believe that the magical nature is all strange, they survive in rare water, stronger than the fish in the ocean, although they all come from the same family, look about the same, but there is a world of difference in habits.

Desert fish because of the harsh living conditions, the real people have seen it very few, so can only roughly out of its body length of only about 3.7 cm, the longest seen at present is not more than 8 cm, and our family goldfish almost the same, their life is only two or three years, but in the young body, but has a lifetime of skills.

According to the research of scientists, desert fish can live in temperatures of 0 to 100 degrees, but also can live in water 3 times saltier than the seawater, they are different from the fish in the ocean, they can only live in small pools in their lives, where they have to mate, spawn, hatch, breed offspring, etc., basically their lives are only in this acre and three-point pool, and to come to this small pool, they need to go through multiple tests.

In the living environment of desert fish, it is called "Death Valley", because it is the highest temperature in North America, up to 55 degrees during the day, and the altitude is quite low, so it is basically arid all year round, and there is only water in the devil's cave at a depth of 130 meters, and this is where desert fish live, only 20 meters long and 15 meters deep.

It took a lot of effort for humans to get to this place, and desert fish have gone through a lot of hardships when they come here. As early as 500,000 years ago, Death Valley was once a saltwater lake, which was not so dry, but then because of the movement of the earth's crust, the mountains suddenly rose, so that the water vapor could not enter, and the water level in the saltwater lake gradually declined, which made the desert fish that originally lived in it a crisis, but this life came to this world, how can it easily concede defeat, and the desert fish will look for a place to live in adversity.

Fortunately, the kung fu does not pay off the heart of the fish, under their efforts, finally in a small puddle to survive, but time flies, the movement of the earth's crust is not over, it is not long before the water of the saltwater lake evaporates again, the existence of salt can be seen in the sand, over time, the desert fish live in the place where the salinity continues to deepen, the water level continues to decrease, which makes the desert fish have to adapt to the adaptive life, and then the sunlight encountered in this devil's cave becomes less again, and the plants in the pool are difficult to live, so that the desert fish face the test again. With a tenacious will, they eventually survived.

Over the years, the various tribulations experienced by desert fish, placed on any kind of creature, may be directly extinguished, but they still exist to this day, becoming a beautiful landscape in the desert.

Why do desert fish live in the desert?

Desert fish live in a very bad place, in the winter of 1849, a group of gold panning team in order to cut a short way across Death Valley, there were many people killed, survivors named this place "Death Valley", and then there are some gold diggers who came for the treasure to try to cross the place, but there are still many people lost their lives here, and then everyone heard about "Death Valley" and was frightened!

But fortunately, the evolution of human civilization, in today's way, to come to Death Valley is no longer so difficult, people have the privilege of discovering the existence of desert fish, and some people are curious about this, why is there a trace of desert fish in such a harsh environment?

In fact, there are different theories, and one is more convincing, as early as many years ago, the desert fish lived in an environment that was not a desert desert, but suddenly there was a major flood here, which flooded the entire Death Valley and also brought the ancestors of the desert fish.

At that time, the water here was still circulating, but the movement of the earth's crust gradually desertified here, and the ancestors of the desert fish were also trapped here, because of the potholed terrain here, but also let the desert fish trapped in different pools, time flew by, so that their appearance became different, so to be precise, today's desert fish are not the indigenous people of Devil East, but fish living in different pools.

As for why different desert fish appear, this may be due to human actions, from the cultural remains on Death Valley, found that some Indians appeared more than 9,000 years ago, they may pass through the desert fish living environment when they are preying, and then the possibility of fish moving in the water, so that today's desert fish look different.

There is also another theory that birds living in the desert accidentally leave their eggs in another pool when they are hunting, so that desert fish can reproduce separately. This is actually convincing, after all, the evolution of history can only be clear to the authorities.

Can they survive without the desert?

It is precisely because of the harsh living environment that the number of desert fish has gradually declined, and now, they have to face another test, because the progress of human civilization has made Death Valley less terrible, so there are often humans passing by here, but people who do not know about it mistakenly regard them as fish, which has a different impact on them.

So in 1966, the United States listed desert fish as an endangered species for protection, but this did not increase the number of desert fish, but in the 1970s, humans only found 400 desert fish traces, a few years ago scientists again counted, found that desert fish only 38.

Such a rare number, the danger of complete extinction is too great, so scientists decided to artificially breed, let the desert fish live in a comfortable environment, to see if it can gradually grow the population, but did not expect that the desert fish left the desert and completely changed.

Scientists have found three similar environments to cultivate desert fish, the temperature is appropriately reduced, the salinity of the water quality is also reduced, after 5 years of breeding, most of the desert fish and fish eggs have survived, but they are no longer desert fish, from the original length of less than 8 cm, it has directly grown to 10 cm, and the original living habits and mating methods of desert fish are completely different, so the survivors can not be called desert fish.

But scientists are not dead hearted, hoping to use what they have learned to help desert fish such species to continue, so they have a plan, because desert fish belong to the medaka genus, so scientists will find similar animals for miscellaneous, in the simulated environment, hope to be able to derive the same species again, but in the end did not usher in good news.

Perhaps the desert fish itself is a masochistic physique, in a harsh environment to survive, the genes in the body because of the extreme suppression, in order to let them continue to reproduce, this may have something to do with time, after all, the ancestors of desert fish have been tens of thousands of years now, their living habits have long been deeply rooted, and it is easy to change it completely.

It really responds to the old saying - sub-fish know the joy of fish, this may be the lifelong fate of desert fish, and what we can help it is to not destroy the environment in Death Valley as much as possible, so that the desert fish can live, fortunately, we found their existence is very timely, after a series of measures, so that the desert a critically endangered species is effectively protected, even scientists must be approved to enter the environment in which they live, under the unremitting efforts of people, Today's desert fish have more than 200 populations, and I believe that in the near future, such species will show a surge in numbers!

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