What Makes the Feather Soar (IMAGE)

University of South Carolina

What Makes the Feather Soar

Caption

Birds have adapted to so many ecological niches in large part because of the variety of ways feathers lend them a competitive advantage. One key to the feather's manifold manifestations is a family of proteins that evolved some 150 million years ago: the beta-keratins.

Credit

Scott Liddell

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