Beak Size Matters for Finches’ Song, Scientists Suggest

Publication: National Geographic News   Date: August 27, 2004   View Article

Darwin’s finches in Ecuador’s Galápagos Islands are cornerstones to the late British naturalist Charles Darwin’s theory of natural selection: the size and shape of the finches’ beaks are adapted to take advantage of their individual ecologic niches.

Some of the sparrow-sized songbirds have large beaks which are able to crush hard seeds—an especially useful trait in drought-prone regions. Other finches have short, sharp beaks which are good for eating insects.

Related Posts

Burned Birds Become New Environmental Victim of the Energy Quest

Neonicotinoid Pesticide Linked to Decline of Birds (and Bees)

Old whooping cranes keep the young ones on course, study shows

Before dinosaurs could fly, some had flight-ready brains

Swallows evolve shorter wings to avoid cars, study suggests

© 2008-2010 Collected Writings By John Roach