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Showing posts with the label Evolution

How the earliest birds flew is revealed by feathered fossils.

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"Beautifully  maintained" The  aerodynamic  properties  of  Archaeopteryx  seem  to  have  been  largely  attributed  to  its  tertial  feathers.                 The Chicago Archaeopteryx under UV light, to show soft tissues alongside the skeleton.  Photograph:                               Delaney Drummond A  well  preserved  Archaeopteryx  fossil  has  provided  new  information  about  how  the  first  birds  flew  150  million  years  ago. The  fossil  represents  the  first  instance  of  an  Archaeopteryx  in  which  researchers  have  discovered  specialized  wing  feathers  that  would  have ...