(FILES) A statue representing an iceman named Oetzi, discovered on 1991 in the Italian Schnal Valley glacier, is displayed at the Archaeological Museu of Bolzano on February 28, 2011 during an official presentation of the reconstrution. Based on three-dimensional images of the mummy's skeleton as well as the latest forensic technology, a new model of the living Oetzi has been created by Dutch experts Alfons and Adrie Kennis. Yeast has been growing inside the guts of a frozen mummy called Oetzi the Iceman for thousands of years, scientists have discovered, telling AFP they used it make a tasty sourdough bread. More than 5,300 years ago -- before the Egyptian pyramids were built -- Oezti was strolling through the Alps on the border of Austria and Italy when he was killed by an arrow in the back. (Photo by Andrea Solero / AFP via Getty Images)