Russia’s Permafrost Provides Buried Treasure

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    Remains of animals that lived thousands of years ago are being recovered from Russia’s far north.

    Russian researchers released images of an 18,000-year-old dog last month. The dog had many yellow teeth, and appeared to be young when it died. ทดลองเล่นสล็อต

    Scientists named the ancient creature Dogor. But they cannot say whether it was closer genetically to modern dogs or wolves. They add that Dogor was alive during a period of time when human beings first appeared on Earth.

    A young dog, believed to be 18,000 years old, found in Russia's Far
    It is the latest buried treasure from Siberia — the traditionally frozen part of northern Russia. The icy climate has kept large stretches of land frozen for thousands of years.

    Now the deep freeze has eased as rising temperatures and other developments combine to bring these long buried secrets to light.

    Russia’s frozen underground — known as permafrost — covers nearly two-thirds of the nation’s 17 million square kilometers. The permafrost protected the bodies of prehistoric animals — ones that walked before the end of Earth’s last Ice Age.

    For about 10 years, the permafrost has melted, broken down or is being dug up for people searching for valuable treasures like ivory.

    What is turning up?
    Well-preserved woolly mammoths, woolly rhinoceros, dog-wolves, long-gone big cats and other biological wonders and surprises.

    They are giving researchers a better idea of evolutionary and natural history. They provide behavioral, physical and genetic information that might have been lost without them.

    Some of the biological material and frozen cells contain DNA, the carrier of genetic information. Now there is controversy over whether DNA from these animals could be used to clone — or bring back to life — creatures from long ago. The process would involve putting their DNA into living animals.

    In at least one case, Siberia has provided the seeds of an experiment that returned plants to life after tens of thousands of years in a deep freeze.

    The Siberian ice is disappearing, with warmer weather melting parts of the permafrost. This provides a gold mine to the scientists as they come across these well-preserved animals.

    In 2010, scientists discovered “Yuka,” the best-preserved woolly mammoth ever found. She died almost 40,000 years ago. Yuka was young, between 6 and 12 years of age, when she died.

    Cloning controversy
    With each mammoth find, comes more controversy.
    The discovery of such well-preserved biological material started the talk of an effort to use DNA from Yuka's remains, or that of another mammoth, to clone them. Many people believe cloning methods are developed enough to successfully bring back an extinct species like the woolly mammoth with complete DNA.

    One problem has been that radiation from outside Earth’s atmosphere most likely damaged any DNA and makes it unusable for cloning.
    This year, however, researchers announced they had taken "less-damaged nucleus-like structures from the remains" of Yuka. They said they saw "signs of biological activities" in them after placing them into mouse cells capable of forming eggs.

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