• A Russian university says scientists have discovered frozen woolly mammoth fragments that may contain living cells deep in Siberia, bringing closer the possibility of cloning the extinct animal.

    LAST UPDATE : Dec 06, 2012, 11:30 PM EST
  • Around the country, the most advanced medical tools that exist are now being deployed to help America's newest veterans and wounded troops.

    LAST UPDATE : Dec 06, 2012, 7:30 PM EST
  • Seven scientists have won prestigious medical awards for development of liver transplantation, discoveries about the inner workings of cells, and leadership in biomedical science.

    LAST UPDATE : Dec 06, 2012, 7:00 PM EST