Scientists revive DNA from ancient woolly mammoth

The extinct beast's remains were found in Northern Asia in 2010. It has since been named "Yuka" and is thought to be nearly 30,000 years old. The breakthrough occurred at Japan's Kindai University. Scientists say DNA from Yuka's muscle sprang back to life after being injected into mice cells. Cloning Yuka is still far out of reach because her cells are degraded and damaged.