Darwin's finches, inhabiting the Galapagos archipelago and Cocos island, constitute an iconic model for studies of speciation and adaptive evolution. A team of scientists has now shed light on the evolutionary history of these birds and identified a gene that explains variation in beak shape within and among species.<img src="//feeds.feedburner.com/~r/sciencedaily/~4/im-DLWj11qw" height="1" width="1" alt=""/>
