The origin of birds’ beak revealed

May 13, 2015 8:22 PM

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Sci­en­tists have manipulated proteins in em­bry­on­ic chickens’ cells to grow dinosaur-like snouts in an effort to turn the clock back and understand how di­no­saurs transformed in­to birds.

Led by Bhart-Anjan S. Bhul­lar, Yale Uni­vers­ity pa­le­on­tol­ogist and de­vel­op­mental bi­ol­o­gist, and Ar­hat Abzhanov, Har­vard Uni­vers­ity de­vel­op­mental bi­ol­o­gist, researchers recreated the mo­lec­u­lar pro­cesses that brought about the shift, by block­ing the ac­ti­vity of the present...

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