The researchers tested this idea by digitally modifying male mating songs of Darwin’s medium ground finches (Geospiza fortis) to sound like they might if beaks grew bigger under one, three or ...

By Liz Kimbrough In the sunbaked Galápagos Islands, a male finch perches on a branch, hearing what sounds like another bird’s ...

In a fight with such wafer-thin margins, we need reporters on the ground talking to the people ... found that drought events can reshape the finch beak and make it bigger and, consequently ...

These findings suggest that, because of the links between beaks and song, an entirely new species of Darwin's medium ground ...

Researchers discovered that drought events can alter the shape of a finch's beak, making it larger and significantly changing the sound of their songs over generations. They found that older birds ...