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First million-year-old DNA extracted from Siberian mammoth teeth.

For the first time, preserved DNA has been recovered from animal remains from Siberia over a million years old. The DNA belonged to two mammoths that lived around 1.2 million years ago.

The genetic sequences change our understanding of mammoth evolution. They reveal that, at that time, Siberia was home to two distinct groups of these animals. The mammoths of North America were the product of a hybridisation event between these two groups, and obtained half of their DNA from each.

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