Related topics: species

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 ...

Spanish volcano more active, spews 'giant lava fountain'

A volcano erupting for the past five weeks on the Spanish island of La Palma is more active than ever, officials said Monday, after new lava flows following a partial collapse of the crater threatened to engulf previously ...

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