People who know the earth must know that human beings are only a short-lived species in the history of the earth. The earth may have existed for billions of years and experienced many terrible disasters. In the Permian period about 250 million years ago, there was a mass extinction. When I accidentally brushed the watermelon video, I happened to see this watermelon video creator, a scientific trip. In his works, he introduced the general process of Permian extinction in detail, which made me gain a lot of knowledge.

Almost every disaster on earth will lead to mass extinction, and the Permian mass extinction is the most terrible. Because the disaster at that time directly led to the extinction of more than 96% of the creatures on the earth, which was almost equivalent to clearing the earth and all the oceans evaporated. This disaster is called the third mass extinction by the scientific community.

There are also different opinions about the specific reasons for this mass extinction, but it is generally believed that an asteroid hit the earth. Finally, after careful search by scientists, a huge crater was found under the Wilkes ice sheet in Antarctica, with a diameter of 500 kilometers, which is twice as large as the crater when the dinosaurs became extinct.

During the Permian period, the most important animals on the earth were insects and invertebrates, and marine life was rich. At that time, Pangu continent had gradually formed. There were no dinosaurs in this period, and the top predators were toothed beasts. But with an asteroid falling into the earth's ocean, life on earth began to be destroyed.

The impact of the asteroid impact directly tore the submarine plate and caused the eruption of the active Siberian volcanic group at that time, and the magma spewed out and swept the whole continent. The forest was burned, the animals were homeless and eventually died one after another. Besides, the volcano has not stopped. It erupted for two million years, the seawater was evaporated to form acid rain, and the earth's environment began to deteriorate gradually.

Since then, the earth has fallen into darkness for the next 400,000 years, and the trilobites that escaped the first two mass extinctions have not survived. Interestingly, the ancestor of mammals, the three-pointed trident, unexpectedly survived. When the light of the earth reappears, a new round of life is born. Now we can only infer the horror of that year from fossils, and no one knows whether the next second will be happiness or disaster, so it is most important to live in the present.

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