Lived for 150 million years, but did not live today! The Yangtze white sturgeon has been officially

The Yangtze sturgeon has lived for hundreds of millions of years, but it has not survived today, and the relevant departments have officially declared the Yangtze white sturgeon extinct, which is also particularly sad. The main growth area of the Yangtze sturgeon is in the main tributaries from Yibin to the mouth of the Yangtze River, and people have also found traces of the white sturgeon in the lower reaches of the Yellow River and the Qiantang River, and Chongqing used to be the place where the white sturgeon grew up as a juvenile.

The appearance of this fish is rather strange, and its snout is particularly slender, like the trunk of an elephant, so it is called elephant fish. This fish has a very long survival history, which is 100 million years as mentioned above, so it is also a living fossil. Through the study of the Yangtze River white sturgeon, we can find a lot of secrets, but this fish is becoming less and less, mainly because the waters of the Yangtze River are more and more disturbed by human beings, but the white sturgeon has not adapted well to environmental changes, because it has maintained its original characteristics.

This can be said to be an advantage, but it is also a big disadvantage, because the fish cannot change with the times, so the mask is also a matter of time. There are no more white sturgeons in the wild, which appeared in 2003 at the latest, but captive-bred Yangtze white sturgeons still exist.

The changes in the natural environment are relatively large, and human beings have been adapting to the changes in the environment, such as getting colder and hotter in winter. However, some animals are unable to adapt to these drastic changes, and the water is polluted, and the white sturgeon's food** may be relatively scarce, so there is an extinction situation. These are the tears of the times, and they will never reappear after they are truly gone.

Although there are farmed ones, there is no way to compare them with those in the wild. The subsequent natural recovery of these fish is also a relatively long process, which requires a lot of effort and time from research experts.

It is also hoped that human beings can protect nature well, so that the natural environment can be suitable for the survival of these ancient species, otherwise many species may become extinct.

The Yangtze white sturgeon is known as one of the largest freshwater fish species in China and lives mainly in the Yangtze River basin. They have survived for hundreds of millions of years, but they are extinct today, and humanity should also reflect on it.

It mainly grows in the middle and lower reaches of the Yangtze River, and there are some of them in the Pacific Ocean, because the environment in which it grows is extremely demanding.

Its living area is actually in the middle and lower reaches of the main stream of the Yangtze River, and there are some large lakes, due to some unreasonable human activities, it has caused some damage to its habitat.

Because there are many people who do not pay attention to protecting the environment, and the current environment has changed a lot from before, it will become extinct.

The current environment is very badly damaged, and the current environment is no longer suitable for the growth of this animal, so it will become extinct.

Because there are many people who don't care for the environment, and there are many people who harm these animals, so they will become extinct.

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On July 21, the Yangtze white sturgeon, which had lived for 100 million years, was officially declared extinct, and many netizens felt very sad and difficult to accept after hearing the news. The Yangtze sturgeon has survived for hundreds of millions of years, but now, humans can only watch them go extinct. Speaking of the Yangtze River white sturgeon, many people may not be particularly familiar with it, it also has a name is "water giant panda", it can be seen that it is as precious as the giant panda, is a first-class protected animal in China.

The first reason for the extinction of the Yangtze sturgeon is thought to be due to overfishing. Normally, most of the Yangtze sturgeon are relatively large, weighing around 200 300 kilograms, and not only that, but they are also impressively long, reaching a length of about 2 to 3 meters. Many people may not know much about the existence value of the Yangtze white sturgeon, only that they are very large, so they are paid special attention to by many diners who like to eat seafood, so it will lead to a decrease in the number of Yangtze white sturgeon.

In addition to the cause of human overfishing, there is also a problem of the ecological environment. Generally speaking, the Yangtze sturgeon lives in the main tributaries of the Yangtze River from Yibin to the mouth of the Yangtze River, and in addition to this place, the Yangtze River white sturgeon has also been found in the lower reaches of the Qiantang River and the Yellow River. The Yangtze sturgeon is a very large fish, and every year around the Qingming Festival in spring, it will go to Yibin and Jiang'an counties in Sichuan Province to spawn, and when the young Yangtze white sturgeon are successfully hatched, they will migrate downstream.

Since dams are now being built in many areas, blocking the migration routes of the Yangtze sturgeon, once their migration fails, the number will of course become less and less. In addition, the Yangtze River white sturgeon cannot be artificially cultivated, and Chinese experts have also tried to artificially breed the Yangtze white sturgeon, but they have all failed. The Yangtze sturgeon can only survive in the wild, and once it becomes extinct, it means that the Yangtze white sturgeon is completely extinct.

The main reason is that the Yangtze River is particularly polluted, and the production of the Yangtze white sturgeon itself is very low, and the Yangtze River is no longer suitable for the Yangtze white sturgeon to live, so it will become extinct.

It is because of the destruction of the living environment, because there are people who catch them, they are hunted. Coupled with the fact that the quality of their living waters is getting worse and worse, it will lead to extinction.

The destruction of their living environment, coupled with the hunting and hunting of some illegal people, led to the extinction of the Yangtze sturgeon.

On July 21, 2022, the Yangtze white sturgeon was officially declared extinct, which is very sad. The Yangtze white sturgeon has existed on Earth for about 200 million years and is a freshwater fish endemic to the Yangtze River basin in China. Previously, the Yangtze white sturgeon has been listed as a critically endangered species, which means that the probability of extinction within 10 years is quite high, and even if humans have taken a series of measures to protect the environment in which the Yangtze white sturgeon lives, it has not been able to save the creature.

In addition to the Yangtze sturgeon, there are now 26 species of sturgeon listed as endangered, and more than half of them are critically endangered.

The extinction of the Yangtze sturgeon is due to the destruction of its living environment, so the population intake of the Yangtze sturgeon has been declining, and when it declines to a certain extent, it is impossible for it to return to its original level through its own adjustment ability, and then it goes extinct. The extinction of the Yangtze white sturgeon also means that the ecosystem has suffered serious damage and a decline in biodiversity.

The Yangtze white sturgeon is not the first species on Earth to become extinct, and it certainly will not be the last. On the one hand, the extinction of species on the earth is caused by natural causes, and some species in the process of evolution due to their inability to adapt to the environment or sudden and drastic changes in the environment, resulting in the sudden extinction of species, but this is not the main reason. The most important factor causing the extinction of species is human activities, and human beings use the resources of nature uncontrollably, destroying the living environment of many organisms and destroying the stability of the ecosystem.

The extinction of a species is bound to cause harm to the ecosystem in which it lives, and the survival of other organisms in that ecosystem is also affected. This is a process that affects the whole body, so human beings must learn to restrain their activities to protect the environment, protect other creatures in nature, and learn to live in harmony with other creatures.

The white sturgeon is one of the very few ancient fish remnants of the Cretaceous period of the Mesozoic Era 150 million years ago, mainly distributed in the Yangtze River basin, with a length of up to 7 meters and a weight of more than 700 kilograms.

The Yangtze sturgeon is a fish creature with a very long history, but it is very sad that it has been officially declared extinct this year.

It is very sad to hear that the Yangtze white sturgeon has been officially declared extinct, and it has survived on the earth for about 200 million years, and is known as the "king of freshwater fish in China", which is a very rare species. It is very sad that it has been declared extinct, and it is very regrettable that it cannot be cultivated and cultivated artificially. The species given by nature are worthy of protection and cherishment, and their growing environment and related living conditions should be very supportive and maintained.

To protect nature is to protect human beings, and these creatures should develop in harmony with human beings. <>

The Yangtze white sturgeon is a very special fish, and it is also very beautiful. It used to live very well in the Yangtze River Basin, but later due to environmental damage and artificial fishing, its growth environment was changed and affected to a great extent. Reproduction is becoming less and less difficult, and it is becoming more and more difficult for species to survive.

By the time the people concerned realized all this, it was already a little too late, and the captive-bred Yangtze white sturgeon only lived for 29 days, which is very short, and artificial breeding could not make it survive for a long time. The Yangtze sturgeon, which has survived on Earth for 200 million years, is very sad that it is declared extinct today. <>

Sufficient attention should be paid to the protection of endangered species, especially freshwater fish, whose living conditions are relatively difficult and the requirements for the growing environment are strict. The relevant freshwater value should be in a very good state, and the river and freshwater life are closely related, reducing the pollution of the river and the pollution of the Yangtze River. It is necessary to keep the water of the Yangtze River clean and viable, so that organisms can grow and nourish here.

Reducing the occurrence of such sad things, extinction is a very sad thing and cannot be saved and remedied. <>

Biodiversity plays a very important role in the development of human beings and nature, and biodiversity should be protected. Respect each species, give them space to grow and reproduce, and do not disturb them or destroy them. Man and nature must learn to live in peace, everyone is on an equal footing, and there is no one who is superior or who is strong.

It has lived on Earth for nearly 200 million years, but now it is officially extinct, which is a special pity.

Having survived on Earth for more than 600 years, it is also known as the king of freshwater fish, and we should reflect on our responsibility for the loss of each species.

It has survived on the earth for more than 300 years, and it is also a relatively old species, and it also lives on small fish, and has never harmed humans.

This creature has existed on the earth for about 100 million years, which shows that this animal has survived for a long time, and it is also a living fossil in China.

He seems to have survived for 10,000 years, existed in the Jurassic world, and now his extinction really can't be commemorated if we want to.

The Yangtze white sturgeon is a large fish that lives in the Yangtze River basin, and this fish is relatively large, reaching a maximum of seven or eight meters. On July 22, 2012, the Yangtze White Bear was declared extinct, as the fish was last seen on the first day of the Lunar New Year in 2003 and has not been seen since. At that time, two people rescued a Yangtze sturgeon in Yibin, Sichuan, and then released and tracked the white sturgeon, but as the radio signal disappeared, there was no news of the white sturgeon.

And the reason why the extinction of this species has only been announced now is because the relevant departments have been looking for it for years, but have not found it. <>

Since the release of the last Yangtze sturgeon, the relevant personnel have also searched along the Yangtze River many times, and in six years, they have searched for it eight times, but there has been no result. No one thought that after the last fish was lost, the entire species would be lost. Since 2003, researchers have not seen any trace of the Yangtze white sturgeon, nor have they been cultivated in captivity.

Wei Qiwei, who specializes in the Yangtze white sturgeon, first saw this fish in 1984, when it was a dead white sturgeon, and between 1984 and 1993, Wei Qiwei and his colleagues also rescued four besieged white sturgeons, but only one was successfully rescued, and then released back into the Yangtze River. The longest time they spend in the process of raising white sturgeon is 29 days. In September 2019, foreign experts also felt that the news of the extinction of the white sturgeon should be announced, but Wei Qiwei always disagreed.

However, after so many years of monitoring, Wei Qiwei and his team determined that the white sturgeon should have become extinct between 2005 and 2010, and in 1993, it was actually functionally extinct, and the population could not reproduce and live normally. The definition of extinction of a species is that the species has no natural reproduction, and when the lifespan of the species is reached, and no individual of the species is found, it should be considered extinct, so it has not been released until today.