FILE - In this June 28, 2008 file photo a sculpture of mammoths is seen in the Siberian town of Khanty-Mansiisk, 2000 kilometers (1250 miles) east of Moscow, Russia. A Russian university said Tuesday that an international team of scientists have discovered well-preserved frozen woolly mammoth fragments deep in Siberia that may contain living cells, edging a step closer to the possibility of cloning the prehistoric animal. (AP Photo/Dmitry Lovetsky,File)

Associated Press
FILE - In this June 28, 2008 file photo a sculpture of mammoths is seen in the Siberian town of Khanty-Mansiisk, 2000 kilometers (1250 miles) east of Moscow, Russia. A Russian university said Tuesday that an international team of scientists have discovered well-preserved frozen woolly mammoth fragments deep in Siberia that may contain living cells, edging a step closer to the possibility of cloning the prehistoric animal. (AP Photo/Dmitry Lovetsky,File)
FILE - In this June 28, 2008 file photo a sculpture of mammoths is seen in the Siberian town of Khanty-Mansiisk, 2000 kilometers (1250 miles) east of Moscow, Russia. A Russian university said Tuesday that an international team of scientists have discovered well-preserved frozen woolly mammoth fragments deep in Siberia that may contain living cells, edging a step closer to the possibility of cloning the prehistoric animal. (AP Photo/Dmitry Lovetsky,File)
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