Chapter 579

"This is..." Duan Fei, who was still confused about these symbols a moment ago, can now understand the meaning of these words. Although he can't translate them word by word, it's not difficult to understand what the whole paragraph is describing.

There are two stories described here. The first paragraph is about the illusion of the origin of the earth.

3.5 billion years ago, when life first appeared, the earth was completely different from today's earth. At that time, the earth was just born from the gas cloud composed of gas, dust and rock. Although the composition of the atmosphere was uncertain at that time, there was no doubt that the gas mainly composed of carbon elements. Dense carbon dioxide, methane and no oxygen at all; The sun at that time was also different from the current sun. According to the theory of stellar evolution, the temperature of the sun at that time should be too high than that at present

The positive temperature is 25 ~ 30% lower. In the early days, the greenhouse effect of carbon dioxide in the air around the earth kept the earth warm and life continued. However, with the rise of the sun's temperature, the sea water became hot, more and more water vapor entered the atmosphere, plus several billion tons of carbon dioxide contained in carbonate rocks. If it continues, the greenhouse effect will eventually get out of control, Like Venus, the earth will be shrouded in thick carbon dioxide gas. High temperature can melt lead. Fortunately, about 2 billion years ago, cyanobacteria began to appear in the ocean. They convert carbon dioxide in the air into organic carbon compounds through photosynthesis. For hundreds of millions of years, cyanobacteria and their evolved plants have greatly evolved and multiplied, so the increase of carbon dioxide in the atmosphere just keeps pace with the rate of solar warming. The theory holds that it is life itself that saves the whole life world.

On the other hand, the earth has never been calm since its birth. In addition to various droughts and floods, hurricanes, tsunamis, earthquakes and volcanic eruptions, it is constantly bombarded by rock fragments from space. Most meteorites are small and become harmless meteors, and a few larger meteors can reach the ground. About 100 million years on average,

A huge meteorite struck the earth, injected a large amount of dust and gas into the earth's atmosphere, shielded the sun, caused great disaster to the earth, and a large number of species were extinct. The most recent one occurred about 65 million years ago, and wiped out the dinosaurs that ruled the earth's land at that time.

This mass extinction was the first mass extinction in peacetime, but it was only after the ancient god relics appeared that mankind really realized that it was unknown how many times it was extinct.

Comets not only bring life to the earth, but also threaten the existing life on the earth. Comets can give birth to life. They gave it to the earth 4 billion years ago. Of course, they can continue to give birth to life. These simple life bodies may be brought to the earth by comets, or they may come to our world because the fine dust left in orbit while running by comets falls on the earth's surface. These life forms that are strange to our earth creatures are like some filter viruses. Hall boldly assumes that these "comet viruses" are disconnected from our higher earth animals in terms of time or structure. Conversely, earth creatures have no resistance to these "comet viruses".

In the meteorite fall three years ago, the virus came to the world, the human world was completely subverted, and all kinds of creatures evolved crazily, which is the same as the wave of meteorite fall that wiped out dinosaurs hundreds of millions of years ago.

Does life on earth originate from land or sea, or is it carried by asteroids from a distant place in the universe? So far, the origin of life on earth is still an unsolved mystery for scientists. They often disagree. Our planet was formed about 4.6 billion years ago. To some extent, at an uncertain time, something must have happened, because this lifeless celestial body began to accept something very different from rock and water.

Nitrogen and carbon molecules evolved into DNA, a kind of microorganism traveling around the universe... There is no doubt that millions of years after the emergence of this tiny molecule, the original single cell body was born, and then gradually more and more complex aquatic organisms appeared. They finally landed on land. Since then, all kinds of organisms have multiplied and spread on a large scale on the earth.

There are about two million different kinds of creatures on earth. However, this is just a figure counted before the end of the day. After the end of the day, this figure rises to an uncountable number. All kinds of organisms fuse with each other, and then continue to swallow the gene nuclei of other mutant animals, so as to mix and evolve. Even human bodies have different biological genes, including the gene nuclei of different kinds of zombies, The gene nuclei of mutant animals with different abilities fuse and absorb each other in human body to transform into a new hybrid individual.

But all kinds of organisms originate from the same substance - a substance that can start the life process to some extent. What kind of substance is this? This paper will explain the latest theories and research results of life on earth. The fragments of some celestial bodies cruising in space are like a group of "Robbers" in the universe, which will collide with a celestial body sooner or later. However, some comets and asteroids that collide with the earth may become the creators of life on earth. It is likely to be a comet that brought a lot of water to the earth. Without water, the earth may always be a dry planet.

Seeing this, Duan Fei couldn't help wondering whether the previous biological extinction was because of meteorites and this human extinction was also because of meteorites. Is there any mysterious connection between them.

At this time, the second fantasy also opened automatically, and the scenes came into Duan Fei's eyes and came into his mind.

This is a paradise like beauty. The first thing that attracts Duan Fei's soul is the phenomenon in the air that cannot be explained by physics. The floating large and small stones rotate slowly like a top, and countless iron chains connect the stones with each other. On the ground, there are all kinds of strange tall plants, some of which are more than 200 meters high, Like a skyscraper.

In the clouds behind these scenes, there is a huge island like a dream, with tens of thousands of buildings on it. The scene is very amazing.

Whoosh! At this moment, all the illusions were taken back and changed into a red symbol again, suspended in front of us. Duan Fei, who touched her gently, shouted like an electric shock.

Ah -!