Why some Darwin’s finch nestlings have yellow beaks

2021-11-02

Carotenoids are the underlying pigment for much of the enormous variety in color found across birds and form the basis for the colors red, yellow, and orange. In a study published in Current Biology, researchers from Uppsala University and Princeton University have uncovered the genetic basis for the yellow beak of some Darwin’s finch nestlings.

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Last modified: 2021-06-15