Extinction and evolution: Is the disappearance of the reproduction of the disappeared species after self -repair on the earth?

Some netizens asked: Some species who have been extinct for 50 years are reproduced in nature. Is the earth repaired by the earth and resurrected the species? From this perspective, this article is about what species extinction is, and whether the earth itself has the function of self -repair.

Let's talk about the laws of the Earth's biological evolution and the extinction of biology

Since the emergence of life on the planet, species have been extinguishing. Modern scientific research believes that life appeared 3.7 billion years ago, and it was not until the early Cambrian of 570 million years ago that it can only appear in a visible face. From this, people call the history of the biological evolution after the Cambrian as the Xianshu, that is, the creatures are displayed.

Xian Shengzhou has experienced five biostatic extinction so far, basically caused by changes in the environment and climate disasters. Each major extinction has about 80%to 95%of species extinction, and then has evolved countless new species of species. This is the earth ecology, and it has been reproduced to this day in the alternation of extinction and prosperity.

The last great extinction was the extinction of the Baiji Period of 65 million years ago. The most significant sign was that the dinosaur family that ruled the earth's 160 million years of dinosaur family was extinct, and there were about 80%of the species with the extinction. However, research believes that dinosaurs are not truly extinct. Some dinosaurs have evolved and become today's birds. Therefore, dinosaurs are also the ancestors of birds today.

The great extinction this time created conditions for the rise of mammals. Humans belong to the top smart creatures in mammals. Therefore, the emergence of human beings benefits from the extinction of dinosaurs. Many new species also benefit from this time. Extinction.

Therefore, the evolution of the extinction itself does not seem to be a bad thing, but a progress. Through the study of the history of biological evolution, people found that after each major extinction, it was a restart of biological prosperity, and it was the interruption and upgrade of biological evolution. Life is much more advanced than in the past.

The life of the earth is from scratch, from the simplest single -cell creature to multi -cell creatures, from anaerobic to good oxygen, from spine to spine, from aquatic to land, from crawls to mammals, and finally from the lowest Grade development to advanced stages. Human beings are the biggest winners in the 45 billion years old and become the masterpieces of all things.

Many scientists believe that now they have entered the sixth biological extinction. In addition to the changes in the environment of the earth's environment, the environmental changes caused by human activities cannot be ignored. Especially the greenhouse effect caused by carbon emissions has already endangered human beings itself. The point of survival. Scientists have repeatedly appealed that there is not much time to leave us. If it does not contain and change it, it is likely that humans will suffer a disaster at the end of this century.

This is by no means alarmist, but the public content issued by global scientists twice in 1992 and 2017, respectively, and repeated appeals and warnings to all humans. The Paris Agreement signed by the United Nations in the world is to solve this problem. I have said many times in the past, and I wo n’t pull it here.

Let's talk about which species extinction 50 years ago, and now it appeared again.

Since the emergence of humans, especially since industrialization, the environmental plundering and development of the environment have caused the ecosystem to be damaged. We are experiencing the sixth extinction of Earth's creatures, and we have a close relationship with human activities.

Evidence shows that in the past 200 million years, the average of about 90 types of vertebrates per 100 years have been extinct, and a high -alive plant extinction is performed every 27 years; and after human activities, this speed has increased by nearly 1,000 times. In 1600, there have been 724 species of high animals and plants with records, and no record may be far greater than this number.

Some scientists estimate that in the 20th century, as many as 2 million species are actual extinction, as many as 140,000 species are extinct each year.

According to a study by the scientist of the British Ecology and Hydrological Research Center, a study by the scientist of the Ecological and Hydrological Research Center, the research of the British native birds has been reduced by 54%in the past 40 years, the wild animals and plants have decreased by 28%. The amazing reduction of 71%, which shows that insects are also facing the destiny of extinction. The study was published in the magazine of Science.

Therefore, if we want to count on which species are extinct, we can't count it, because there are new species extinction yesterday and today. So what kind of species are extinct 50 years ago? I can't find information about this. I simply talk about some animals that have been declared extinct and have occurred, to explain this problem.

There are a lot of giant birds called giant chickens on the Internet. They have a length of about 60 cm and a weight of about 2 kg. They used to spread throughout New Zealand and North Island. Since the gross profit from 1,000 years ago, the delicious and delicious giant chickens have become their targets for their hunting. And these people brought mammals such as pigs, cats, rabbits, cow, fox rats, and other mammals, which destroyed their food chain while prey for giant chickens, so that the number of giant chickens decreased sharply. In the 1930s, people thought that This giant bird is extinct.

Fifty years ago, the local government officially announced the extinction of giant chickens. Unexpectedly, now, people have discovered the trace of this giant bird, so they have strengthened protection. Now it has developed to 300, but it is more than 1864 pandas. Few, showing its preciousness.

There is a wild dog living in the forests of New Guinea, called "Singing Dog". Because of its unique barking sound, it is sometimes high and sometimes groaning. It sounds like a gentle singing. This dog was declared extinct 50 years ago, but the "Mirror" reported on September 1, 2020 that scientific researchers re -discovered this wild dog during the investigation of New Guinea. The appearance of the elephant is more like a mouse, but the blood margin is closer to the elephant, which is named. From the perspective of the evidence of fossils that has been discovered, its shape has been almost changed after 23 million years, which is the title of a living fossil species. This animal did not appear 54 years ago and was considered to be extinct in the wild, but was discovered in the wild in August 2020.

In fact, the species that disappeared 50 years ago would be reproduced, or that species that were considered extinct tens of thousands of years were re -discovered. If you think that Grandorius Ant, who was extinct 20 million years ago, was discovered in Paraguay in 2006; the grassland wild boar, which was considered extinct 10,000 years ago, was discovered in 1981; New Guinea Big Ear Bat was re -found in 2012.

Practice for decades has proved that human intervention and protection can be able to rescue some animals. For example, the giant panda in my country, under the protection of artificial protection, has now been reproduced to 1864, deleted from the list of endangered animals, and upgraded to dangerous animals. In recent years, there are many species such as long -nose -long nasal bats, Pu Shi Mustang, honeycomb, white head eagle, Arab antelope, West Indian hulls, and mountain gorillas, and have been pulled back from the edge of endangered animals or extremely hazardous animals.

So, is the reproduction of extinction species the result of the self -repair of the earth?

I don't think it is so simple that it may be that there may be many cases because it is announced that there may be many species, at least there are: 1. Really extinct; 2. It is only very scarce and not seen by others.

If the species is really extinct, it will not appear again. However, in the wild forests that are unmanned, they are inaccurate, and some species with very few exterior stocks are difficult to find. Generally speaking, the species that have not been discovered in 50 years will be identified as extinction. However, it is determined to be extinct, and it is not really extinct, and there are also missing nets that have not been mistaken for extinction.

Therefore, it is found that the "extinction" species now appear again. It is not a earth ecological repair. These species are reborn, but these species have been discovered again. Of course, there may also be the earth's ecology in it, and these species have more factor breeding.

Now, to announce that a species is more and more standardized, the more authoritative institution is the International Nature Protection Alliance. The English name is International Union for Conservation of Nature and Nature Resources (IUCN.

IUCN has compiled the red list of endangered species (IUCN Red List) since 1963. In this list, 5734 endangered species were listed in 2012, including 3079 animals and 1197 plants. Among the endangered species, four levels are divided into four levels of endangered, extremely dangerous, unreasonable in the wild, and extinction; and on the endangered, divided into several levels of giant pandas in my country. Dangerous level.

Generally, extinction mainly refers to the extinction of the wild. Some species are artificially raised and reproduced, and it cannot represent that there is no extinction in the wild species; and the extermination of completely extinguishes is that artificial breeding is gone. According to statistics, 75 species are extinct every day in the world, and 3 species are extinct per hour. The extinction of species is chain. Some species extinction will cause the species chain to break and cause a series of species extinction.

For example, the long -nose -nasal bat is an endangered species and is the main pollination animal of the agave. If the southern long nasal bat is extinguished, the agave will also be difficult to live alone. Therefore, the acceleration of species extinction will cause a series of chain reactions, which will eventually lead to crushing of the entire species chain and cause the ecological collapse.

Scientists believe that the earth is facing the sixth biological extinction. Dr. Jiang Zhigang, the chief researcher of the Institute of Animal Research of the Chinese Academy of Sciences and the executive deputy director of the Science Committee of the China Endmeter Species, believes that since the industrial revolution, the earth has entered the sixth period of extinction.

So is the earth's ecology capable of healing and repairing it? Of course, this is certain, provided, provided that humans are no longer destroyed, and naturally they will recover with their natural laws. But one thing to explain is that the natural environment itself will continue to change according to geological changes and solar radiation. These changes will not be friendly to every species. The new species will emerge again.

At present, the destruction of human beings is mainly the environmental gas emissions caused by fossil fuel burning, which has increased the average temperature of the earth. Some studies believe that the average temperature of the earth has risen by 1 degree Celsius since industrialization, and the average temperature of the earth has risen by 3 degrees Celsius is a threshold. Once this critical point is reached, the earth climate self -regulating system will collapse, and extreme climate and environmental disasters will come. It is difficult for humans to escape.

The Paris Agreement is through the signing of commitments from various countries to reduce emissions and emission reduction, and strives to control the temperature rising within 2 degrees Celsius at the end of this century.But can this goal be achieved, from the current mess in the world, the prospect is worrying.Many scientists are pessimistic that it is difficult for humans to survive the crisis at the end of this century.After the extinction, the brewing and evolution of hundreds of millions of years, the new species that adapt to the new environment will be re -prosper.But if humans really die, there is nothing about humanity in the new world.Therefore, for future generations, we must cherish the present, in response to the appeal of scientists, start with ourselves, and reduce carbon emissions.

Everyone’s strength is very meager, but if everyone around the world can do this, it will bring together a strong power, and they can achieve carbon neutrality in the short period of time as possible, saving the earth ecology, and then saves the earth's ecology, and then it can save the ecology of the earth.Save yourself.What do you think about this?Welcome to discuss, thank you for reading.

The original copyright of time and space communication, please do not infringe plagiarism, please understand cooperation.

- END -