This paper takes part in the series essay competition of “great science” of Recordunkown.
The core of life is evolution. It is through billions of years of evolution that life on earth has become a colorful biological world and the birth of human beings. The evolution of organisms is not disorderly, but has a certain regularity.
The evolution of organisms needs to abide by some natural laws, “emergence and disappearance” is one of them. In the long years of life evolution, many kinds of organisms have disappeared, and some organisms that had already disappeared will still appear in the later years.
The birth, evolution and survival of human beings should also follow the laws of nature. Due to the birth and development of human beings, the earth’s ecosystem has also undergone tremendous changes. Nature will also adjust its ecology according to the various influences of human beings. Although the birth of human made the earth a rare civilized planet, human activities also brought faster and worse effects to the biological world.
When human beings enter the era of science and technology, the impact of human beings on the earth’s ecology and the biological world is increasing. With the help of science and technology, the living standard and life span of human beings are constantly improving, but in the natural state, for other wild animals except human beings, the disappearance and extinction are accelerating.
Over the past 100 years, many species on the earth have been extinct or on the verge of extinction. As we said earlier, there is a law of “emergence and disappearance” in the law of biological evolution, and some organisms that have disappeared for a long time may appear. So is there any new life that has disappeared for a long time? The answer is yes.
According to the scientific record data, there is a kind of giant tortoise named Fernando in Galapagos that has disappeared for 113 years. According to the scientific report, since the discovery of the giant tortoise in 1906, scientists have never seen the appearance of the creature, and some people even say it may have been extinct.
But it was this giant turtle that disappeared for 113 years, but it was discovered by scientists in an accident. This mysterious creature disappeared and reappeared again, which caused heated discussion in the scientific community. People are talking about why this giant turtle can reappear after 113 years of disappearance? You know, the environment of Fernandez island is very dangerous, there are often volcanic eruptions.
In such a harsh environment, the survival of organisms is very difficult. Once a species disappears for a long time, it basically means that such species have been extinct and will not appear again in the future. But the biological world is so magical that the law of “appearance and disappearance” teaches us a lesson again.
As for the reappearance of fernandena giant turtle 113 years after its disappearance, more people still think that this kind of giant turtle may have been living in a very hidden place on fernandena Island, and it has not been discovered by us in 113 years, which does not mean that it disappeared and disappeared for 113 years, but it has been living on the island for 100 years, but we have not found it I’ve seen it.
Even so, it also shows that this giant turtle is an endangered species. It is possible that this giant turtle discovered by scientists now is the only remaining fernandena giant turtle in the world. The fernandena giant turtle is unlikely to be a creature that will reappear after extinction. Probably it has been living in the biosphere, but it has not been found by human beings.
So are there any other creatures that have disappeared for a long time? Nature exists. Scientific love once discovered a kind of “diphtheria Yangji” which has been extinct for 136000 years. This is a bird that has been extinct for 136000 years. In the process of evolution, there is “repeated evolution”, so it appears in the modern biosphere.
In this way, although some ancient creatures that once appeared on the earth have been extinct for a long time, they may reappear on the earth in the future with the continuous progress of biological evolution. For example, dinosaurs that were extinct 65 million years ago may reappear in the future.
For the earth’s biosphere, the reappearance of vanishing organisms is of course a good thing. It can enrich the earth’s biosphere. However, we need a healthy and stable ecological environment if we want the earth’s organisms to continue to “re evolve” in the future and let more ancient organisms reappear.
However, according to the continuous destruction of human activities to the earth’s ecology, it is not easy to achieve this goal. What’s more, the earth’s biosphere also has a natural law to follow, that is, mass extinction. In the earth’s biological history of nearly 400 million years, there have been five mass extinctions.
These five mass extinctions are not completely without rules. According to the research and exploration of scientists, mass extinctions may be a natural law that the biosphere must follow, which may also be a rule that must be completed on the way of evolution. According to the average time cycle of mass extinction, under the correct circumstances, the earth may usher in the sixth mass extinction event in about ten million years.
For human beings, tens of millions of years is a relatively long time. With the development speed of human science and technology, we should not worry that in tens of millions of years, human beings will disappear because of the mass extinction. So will the sixth mass extinction come according to the time cycle given by the law of nature? Maybe not.
Because after the industrial revolution, the continuous destruction and deterioration of the ecological environment are accelerating the arrival of mass extinction. There would have been tens of millions of possible mass extinctions, which could come hundreds of years later.
In June 2020, a new round of research reports also pointed out that the sixth mass extinction is accelerating at an unprecedented speed, which has aroused people’s concern about the extinction or disappearance of organisms. By studying the distribution of endangered species around the world, the scientific research team gave a preliminary data explanation, that is, they found that 515 endangered species (1.7% of the total number analyzed by the research team) are on the verge of extinction and may disappear in the next 20 years.
Although we have seen the reappearance of the disappeared organisms, which can add a species to the earth’s biosphere, the environment is deteriorating, and the species that are on the verge of extinction and disappearing are increasing every year. The overall size of the earth’s biological population is shrinking. If this situation continues, even if the scientific and technological strength of human beings is strong in the future, then human beings may be the only species left on the earth. What a sad thing.