The earth is a beautiful planet of life. In the 4 billion years of life, I don’t know how many lives were born and how many died out. Life and death is a normal natural law, no life can escape, but in the long years of life, there are many creatures facing unnatural death, that is, one after another mass extinction.
In the long billions of years, no one can say clearly how many times the earth has experienced extinction events. At present, according to the archaeological research of scientists, what has been found is five mass extinctions, of which the first one has resulted in more than 80% of the total extinctions. The most recent was the extinction of dinosaurs 65 million years ago.
In addition to the five mass extinctions, the earth has also experienced many small extinctions. During the mass extinctions, a large number of creatures were forced to die, and their bodies were buried underground. Some of these bodies became fossils, leaving traces of their existence for future generations, some disappeared completely in the high temperature climate, and some were frozen in the underground soil.
Endless years have passed. In modern times, through a large number of paleontological fossils, scientists know the disastrous events that have happened in the history of life on earth. And these fossils have no threat to human beings and the earth’s environment, because they are completely dead. But life under the ice is worrying scientists.
As we all know, the earth is not full of warm environment. In the north and south poles, it has been a very cold area for tens of millions of years. There is not only a lot of ice and snow, but also a lot of frozen land. A lot of people know about Siberia, which is a vast frozen area of the Arctic.
In these frozen places, there are many kinds of ancient life in the underground ice which is more than 1000 meters thick. Under normal circumstances, they will stay in it forever and can not live in the world. However, with the impact of human industrial activities on the global climate, the temperature of the earth is rising, especially in recent years, the rise of global temperature is more and more obvious.
The rise of the earth’s temperature has a great impact on the north and south poles. Now we can see that the ice and snow in the north and south poles are melting rapidly every year. Many places that used to be ice and snow are now lakes. With the continuous melting of ice and snow, the frozen land is also constantly melting. When the permafrost continues to recover, the frozen paleontological corpses in the soil are constantly revealed.
Last year, scientists found the body of an ancient wolf in the melting permafrost of the region. The body is very complete. Scientists have also found living cells in the corpses. Many people think that those ancient lives are tens of thousands, millions or even tens of millions of years ago, and they have already died thoroughly. It is impossible for them to pose any threat to the current environment and human beings.
But is that really the case? If the complex life, such as wolves or other ancient creatures, died and were frozen underground for tens of thousands of years, there is no possibility of resurrection. This is the rule of nature. There are no complicated creatures to break, but the tiny microbes are totally different.
We all know that microorganism is the simplest life in the world of life, but the simpler the life is, the stronger its vitality is. Some scientists have studied and explored why life on earth did not choose immortality on the way of evolution? According to the research findings, scientists believe that the early simple life is divided into two evolutionary directions. One direction gives up immortality, and chooses to grow to a higher life through continuous evolution. They eventually become the complex biological world and the birth of human beings.
And the other does not give up the way of immortality. They are microorganisms. If microorganisms want to achieve immortality, their evolution must be simple. The simpler the life is, the stronger the vitality is, and the more likely they are to achieve real immortality. Although today’s microorganisms have not evolved into immortal life, they continue to grow on a simple road and still form a tenacious vitality.
When microorganisms are frozen under certain conditions, they will not really die. As long as the time is ripe and the climate is suitable in the future, they may revive from the frozen state. If you want to ask where there are these frozen ancient microorganisms on earth, it must be the permafrost in the polar regions. Scientists once collected some ancient leapfrog viruses in the place where the permafrost was revived. These viruses were frozen in the permafrost for tens of thousands of years.
When scientists bring these ancient viruses back to the laboratory, some of them can be recovered successfully through certain methods. This shows that these ancient super viruses are not completely dead, they just fall asleep, and may come to life with the recovery of permafrost in the future. Although there won’t be many ancient bacteria or viruses that can wake up in the end, don’t forget that the reproduction ability of microorganisms is very terrible. Even if there is only a small number of them, they can reproduce in large quantities in a very short time, and finally become a terrible microbial army.
The horror of the virus believes that everyone has experienced this year after COVID-19, and the world’s COVID-19 is still continuing. Although this new coronavirus has brought great harm to human beings, it is still within the scope of human cognition. With the passage of time, scientists will soon be able to develop relevant vaccines and completely eliminate them.
However, for those ancient super viruses that are tens of thousands of years, millions of years or more, they may be completely different from modern viruses. Through the samples collected by scientists, it is found that the ancient viruses are very large, although they are simple life, they are still very different from modern viruses. Scientists know very little about those ancient viruses, especially in different life times, the characteristics and types of microorganisms are also very different.
The permafrost is frozen with all kinds of bacteria and viruses from different life periods. If they all wake up, it is difficult for scientists to say what kind of impact they will have on the earth’s ecology and human beings. However, scientists are very worried about this. We should know that the threat of viruses to human beings has never stopped since ancient times.
Although human beings are now in the age of science and technology and have developed medicine, we still have no good response to viruses. There are still countless viruses that can threaten human health and even life. The trend of global temperature rise has been difficult to change, glacier melting, the recovery of permafrost in the future is also difficult to effectively control.
Therefore, the future of mankind seems beautiful, but in fact, it may face more difficulties. If human beings want to truly achieve permanent continuity, they have to focus on space and the vast universe. As long as we become an interstellar civilization, we will not confine our hope to the earth, but to the whole universe. At that time, even if the earth was completely invaded by ancient bacteria and viruses, we still had a way out, that is to give up the earth and emigrate to the planet.
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