Princeton Biologist Bridgett vonHoldt (IMAGE)

Princeton University

Princeton Biologist Bridgett vonHoldt

Caption

Princeton biologist Bridgett vonHoldt, seen here with her dog Marla, branched out from her usual field of canine genetics to tackle a bird mystery: Why does a species of Cameroonian finches have two beak sizes?

Credit

Chris Fascenelli, Princeton University

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