How did the ancient mammoth disappear and how the mammoth became extinct

On Wrangel Island in the northwestern part of Russia's Bering Strait, the bones of some animals, including mammoths, which became extinct thousands of years ago, often come to the ground after a snowstorm. Because the cold slows down the natural corrosion process, some bones are so well preserved that there is even bone marrow oozing out, which is greasy to the touch. These "fresh" mammoth bones may be worth more to scientists than some precious fossils, because the DNA information extracted from the "fresh" mammoth bones has the potential to provide a new explanation for the cause of the mass extinction of mammoths.

It is widely believed that the disappearance of the mammoth is related to the earth's climate change, and as glaciers retreat, temperatures rise, and later drought, the mammoth is unable to adapt to its new habitat and eventually dies out. But this view struggles to explain the fact that in previous climate changes, sometimes the climate abrupt changes were more dramatic, and the mammoth was not extinct.

Obviously, climate change is not the only cause. Some researchers have found that the period of human migration from Asia to the Americas via the Bering Strait coincides with the extinction of the mammoth, and further believe that human hunting activities contributed to the mammoth's eventual demise. But archaeological finds have shown that there are few traces of human activity in the mammoth's gathering place.

On the other hand, at that time (10,000 years ago) human hunting tools were also extremely simple, mainly relying on stone tools, and it was quite risky to round up huge and strong mammoths. A recent study** in the journal Molecular Biology and Evolution noted that viral DNA was found on the mammoth's gene fragments, which belong to an endogenous reverse transcriptase virus. The fact that the virus has survived thousands of years of reproduction, evolution and survival shows that it has an important impact on the genetic chromosomes of living organisms.

This opens up a new dawn for solving the mystery of the mammoth's demise. Such cases are not uncommon today, such as the Ebola outbreak in Africa, which is extremely contagious, rapid and deadly, and has little resistance on its own. Is the virus the culprit behind the mammoth's extinction on Earth?

Scientists say there is still a lot of work to be done, and that this does not necessarily solve the mystery of the mammoth's demise. But "the more we know about extinct animals, the more likely we are to avoid the same catastrophe in the future." ”

Originally calm jungle. Suddenly, the earth shook slowly, dust flew up, and soon the air was filled with smoke. In the blurred vision, you can clearly see the animals fleeing in a panic.

Boom, the elk ran out of the woods and was hit by a towering tree, and the blood gradually came out. Large trees block the only exit from the jungle. I saw a bull rushing towards the elk that had been crushed to death.

But the big tree is like a mountain, and the horns of the ox are crushed in an instant. Everyone was shocked. Even such a strong bull can't do anything, so what to do?

At this time, a group of orangutans climbed a large tree. Mother orangutan climbed to the top. The father orangutan threw his new-moon baby on it, and the mother orangutan caught it.

I wanted to go back and pull up his husband. But the ground suddenly cracked, and Daddy Orangutan fell. The mother did not cry, she carried her baby and climbed up the mountain.

Mammoths are inconvenient to walk due to their relatively large size. Elephants have a habit of staying together wherever they go, whether they live or die. At this time, the volcano erupted, and the land slowly split into several pieces.

The sea slowly rose, and the land floated as a result. Dividing them apart, a female elephant saw her baby getting farther and farther away from her. Jumping into the sea, she had just surfaced and was hit by a cold-blooded and merciless stone.

It slowly sank to the bottom of the sea. The male mammoth also jumped into the sea. The volcano erupted continuously, scorching the entire forest land.

The mammoth had to jump into the sea.

In this way, you hugged me and squeezed me, and they all panicked. After a long period of sea**, the land is torn apart. Many animals perished as a result. And the Mammoth Fang, the greatest king of beasts during the Ice Age, was also extinct.

After a long geological change in the Siberian region. It began to get colder and colder, and he froze all the sea. The mammoths that had fallen to the bottom of the sea were frozen at the bottom of the sea, along with other creatures.

After about 10,000 years, Russian exploration teams carried out excavations in the Siberian region. Finally, after dozens of days and nights, they unearthed a pile of frozen mammoth carcasses, along with his teeth.

His bones were petrified. But miraculously, his teeth, as if they were in the freezer, were preserved. After a research investigation.

This mammoth tusk is buried under the ice. Mammoth tusks are the hardest thing on the mammoth body. That's why he was saved.

And this mammoth ivory has also been infected with many different minerals under the ice. Gave him a renewed soul.

Today, mammoth ivory is also listed as an organic gemstone by the state. It is also a symbol of friendship between China and Russia.

So for the sake of protection, resist the modern hunting of African ivory. Let us have friends around us who are buying and playing with modern ivory, and stop it quickly. Let's start with this 10,000-year-old natural treasure of the world: "Mammoth Ivory".