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New scans unlock the secrets of the 'first bird'

22 May 2014 Last updated at 01:25 BST

A new 3D X-ray fossil-scanning technique has produced some of the clearest images yet of Archaeopteryx, often described as "the first bird".

Hidden details of its feathers will help solve the mystery of whether or not it could really fly.

BBC News visited the laboratory to see how the team were unlocking the fossil's secrets.

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