The new study shows that beak-driven changes to songs themselves can impact species recognition, and thus drive the separation of species. "I started working with these birds 25 years ago," says ...

In his memoir, The Voyage of the Beagle, Darwin noted, almost as if in awe, "One might really fancy that, from an original paucity of birds in this archipelago, one species had been taken and ...

How do you know that finches' beak depth is heritable? You can see from Figure 2 that there is a correlation between the parents' and offsprings' beak size. How did the finch population change ...

This morning came the talk that everyone had been waiting for - Princeton professors Peter and Rosemary Grant presented their 33-year project on the adaptive radiation of Darwin's finches on the ...

These birds are collectively known as Darwin’s finches because they helped British naturalist Charles Darwin uncover the ...

As the legend goes, Darwin sailed as ship's naturalist on the Beagle, visited the Galápagos archipelago in the eastern Pacific Ocean, and there beheld giant tortoises and finches. The finches ...

In 1833, a young Charles Darwin met an animal in the Falkland Islands that he couldn’t explain: a large, social, strangely inquisitive bird of prey that looked and acted like a cross between an eagle ...

Darwin's drawings of the different heads and beaks of finches Darwin's observations revealed that the finches had wide variations in their size, beaks and claws depending on which island he was ...

Darwin's Finches These drab but famous little birds of the Galapagos Islands are a living case study in evolution. Isolated in the South Pacific, they have developed 14 species from a common ancestor ...