230 million years ago, there was a rainstorm on the earth that lasted for 2 million years, which was called the Canyon flood. These are the conclusions drawn by scientists through research. It is precisely because of this long and continuous rain that the key turning point of hegemony replacement on the earth was brought about, and the dinosaurs were put on the throne of the king.
Scientists found that during the Permian period more than 200 million years ago, the temperature on the earth gradually increased. The overlord of the earth at that time was an orc with different teeth. At that time, dinosaurs were sauropods, and there was no dragon form.
At the end of Permian, the temperature on the earth continued to rise, and the collision of continental plates triggered the continuous eruption of volcanoes. As a result of desertification, plants became less and less, and mass extinction began on the earth. Many species went extinct, and some survivors stayed.
Ancient fossils and rock formations recorded the changes that happened on the earth hundreds of millions of years ago, and scientists can estimate the disasters that happened on the earth at that time.
After the great extinction, the earth entered Triassic, with higher temperature and insufficient fresh water sources. Surviving animals and species have evolved to be more drought-tolerant. Among the surviving species, there are orcs who can keep constant temperature and ask questions. They gradually evolved into cold-tolerant and drought-tolerant, and these orcs gradually became the dominant species on the earth.
When the most drought-tolerant crocodiles once proliferated in the Triassic period, scientists even boldly speculated that for a long time, the earth was likely to be full of crocodiles, and even the once dominant beasts had to retreat to the corner, because the number of crocodiles might be too much.
At this time, dinosaur groups all have hard armor and scales, which can better keep the water in the body and are not afraid of dry weather. Even the lizard, the distant ancestor of dinosaurs, still lives in the arid desert area of our earth today, carrying on the gene of Gu Long.
Because of the climate change of the earth during the Triassic period, the dinosaur population also accelerated the speed and process of evolution and began to derive various dinosaurs.
Then the heavy rain more than 200 million years ago lasted more than 2 million years. Why didn't you drown the whole earth? The heavy rain was caused by a fire. More than 230 million years ago, there was a volcanic eruption on the west coast of Canada, which was called the Langlia Volcano eruption. This volcanic eruption was terrible and lasted for 500 years before it gradually went out.
Volcanic eruption has affected the air and temperature of the whole earth for too long, and the whole world is full of carbon dioxide produced by combustion. Because the atmospheric circulation keeps boiling, the water circulation in the atmosphere collapses.
Therefore, the earth is full of storms and rainstorms, which are endless. Because the volcanic eruption temperature remains high, the rain falls to the ground and evaporates quickly, and the water vapor becomes rain again, and the falling rain becomes rain again after evaporation. In this way, the terrible rainstorm that has not stopped for 2 million years is repeated on the earth.
In this extreme climate, many animals and plants are knocked down by rain, and the remaining plants are eliminated by species and can flourish. The surviving species also began to evolve characteristics more suitable for the earth's environment.
As a branch of the dragon, dinosaurs accelerated their evolution. Some of them have long necks and become herbivores who eat leaves, while others have sharper teeth and claws and become carnivorous dinosaurs. In order to survive on the earth, they show their abilities and evolve different characteristics and forms.
Scientists found from paleontological fossils that before the heavy rain of 2 million years, the number of dinosaurs in this area was only about 5%, but after the heavy rain of 2 million years, the number of dinosaurs on the earth suddenly occupied 90%, and it jumped over the orcs and became the overlord on the earth. This heavy rain, which was a disaster for many creatures, sent dinosaurs to the throne and evolved into various dinosaurs. After that, they lived hundreds of millions of years.
For hundreds of millions of years, there were no natural enemies, and they ran freely in any area suitable for dinosaurs, until the asteroid hit the earth, which led to the complete extinction of dinosaurs on the earth.
Our earth has a mysterious evolution process, which has been persistently studied, inferred, guessed and discovered by scientists. There are still many unsolved mysteries about dinosaurs, a species that has lived on the earth for hundreds of millions of years. In the future when science is more advanced, perhaps scientists will gradually unlock more secrets of dinosaurs, thus unlocking the mystery of species evolution that was dusty on the earth hundreds of millions of years ago.
Paying attention to the biological evolution of the earth is actually paying attention to human beings and studying dinosaurs and prehistoric species, which also helps to solve the mystery of the origin of life on earth.