A CT-scan image of the skull of an ancient bird shows how one of the earliest bird beaks worked as a pincer, in the way beaks of modern birds do, but also had teeth left over from dinosaur ancestors.

Unlike most modern birds, the flightless group that includes ostriches and emus can’t move their upper beaks – a feature that, for the past 155 years, has been considered primitive.

The team found that finches within the genus Geospiza all have beaks differentiated only by scaling transformations, with only a single gene controlling each of the three dimensions.

Paleontologists have found a fossilized pterosaur precursor with gnarly, scimitar-like claws and a beak, indicating that the reptilian group it belongs to was more diverse than previously thought ...

Researchers believe beaks might have helped would-be birds diversify their diets after a meteor would have killed off much of ... are not a well-understood group," said first author Derek ...

A new study details the evolutionary change of Anna's Hummingbirds, finding their beaks have grown longer and more tapered to get the most from common feeders.

Biologists have created chicken embryos with dinosaur-like faces by successfully replicating the molecular process that made dinosaur snouts evolve into bird beaks. A team of researchers, led by ...