bird fossils reveal life's colourful chemistry: the pigments preserved in fossils, including a 120 million-year-old bird, have been revealed using x-rays. - discu.eu

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Bird fossils reveal life's colourful chemistry: The pigments preserved in fossils, including a 120 million-year-old bird, have been revealed using X-rays. http://www.bbc.co.uk/nature/13965976 8 comments 1/7/2011 science