Why some of Darwin's finch nestlings have yellow beaks

Carotenoids are the underlying pigment for much of the enormous variety of 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 ...

How Galápagos finches evade a parasitic fly

Darwin's finches on the Galápagos Islands are once again providing insights into the theory of evolution, with two Flinders University studies investigating their dealings with a parasitic fly.

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