19-08-2015 17:05 via scitechdaily.com

How Birds Got Their Beaks

In a new study evolutionary biologists reveal that bird beaks are the result of skeletal changes controlled by two genetic pathways, shedding light on the origins of one of nature’s most efficient tools. Birds are among the most successful creatures on the planet, with more than 10,000 species living across the globe, occupying a dizzying […]
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