As for what species of this fish came here, scientists only speculate that it may have been caused by an earthquake tens of thousands of years ago. In fact, in 20 19, the total number of desert fish was only 38, and now how many are likely to be less than this number. Seeing that the number of fish in the desert is decreasing, the researchers deliberately built three and? Devil's hole? In places with similar environments, people hope to increase the number of desert fish by increasing shelters, but desert fish in different caves are showing more and more differences.
Desert fish living in Death Valley, USA;
With a total area of about 65,438+0,408 square kilometers, Death Valley is a desert valley located in California, USA. It is an important desert biosphere reserve. Seen from a height, Death Valley is not a regular figure, with a width of more than 20 kilometers and a narrow place of only about 6 kilometers, but the maximum length of the whole death is still 225 kilometers. In addition, there are more sinister cliffs on both sides of Death Valley, which is the driest place in North America, which is why there are still? Dry bone valley? A name that scares people.
Why is there? Death Valley? This name? Of course, this is not just because of the bad environment. It was in the winter of 1849, and there was a team that was not afraid of poor conditions? Gold rush? Passing through here, but unfortunately most of them died here, and then what? Goodbye, Death Valley? It's what some survivors left behind when they left. However, it is such a person who seems extremely unfriendly to life? Forbidden area? But desert fish have thrived here for tens of thousands of years.
Why not move the desert fish in Death Valley to the Mississippi River?
This species has entered an endangered state, but the reason is that they can't live without this environment. However, with the global climate change, the groundwater resources in Death Valley have also begun to dry up, so this desert fish is about to come to the end of its life. The reason why desert fish living in artificial shelters show different phenotypic characteristics in just five years is related to the plasticity of desert fish itself, whether it is genotype, behavior, structure or physiology
Desert fish living in natural habitats will have different characteristics from artificial habitats, but in other places with water in Death Valley, desert fish can't survive and reproduce at all, because this species not only has strict requirements on water temperature. Even though the Mississippi River, with a total length of 3,767 kilometers, is called the fourth longest river in the world and the largest river in the United States, it not only has a vast basin area, but also has a large amount of water.
However, desert fish is completely different from other common fish and animals living in fresh water. If other waters in Death Valley with similar environment can't adapt to it, how can it adapt to the survival competition among more creatures in the Mississippi River? Endangered animals are far more than desert fish, and their widespread extinction is due to the destruction of natural habitats. The great changes of the earth's environment are related to the evolution of the planet itself and the production activities of human beings.
Although human beings have realized the importance of protecting the earth's environment and begun to protect wild animals in nature, it is still difficult to prevent endangered species from going extinct with current human science and technology, because it is difficult for us to restore their natural habitats to their original appearance. So, it's not that no scientist thought of moving these endangered desert fish to other places, but the problem is that such an operation can only further accelerate their extinction.
What's the difference in Death Valley? Besides desert fish, what other animals haunt here?
Death Valley is low-lying, with an area of more than 500 square kilometers even lower than sea level. It is more than 200 kilometers away from Las Vegas in the United States, and it is barren, dry and hot. In summer, the temperature in Death Valley often exceeds 37℃, but fortunately, the warm airflow may also cause short-term rainfall due to high temperature, which is why an invisible landscape covered with plants and wild flowers appears at 20 15 in this high-dry, high-temperature world.
According to the existing records, the highest temperature recorded in Death Valley is 56.7 degrees Celsius, but endangered desert fish are not the only wild animals living here. In fact, so far, there are still traces of rattlesnakes, desert shelters, orioles and foxes in Death Valley, but most of them only appear before sunrise or after sunset. At the same time, Death Valley is rich in mineral resources, including mica, hematite, limonite and other minerals besides well-known gold, silver and copper. When the time came to 1994, Death Valley was officially designated as a national park, so now more and more explorers go to Death Valley, and the mystery of Death Valley has been unveiled.