More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ostriches, and kiwi birds. In a study in the journal Evolution, researchers ...

Learn about the dozens of species called birds of paradise. Discover the dramatic, brightly colored plumage that sets them apart from their peers.

An international study has analyzed the distribution of 115 species of birds in spring and 72 that spend the winter in different cities. The study provides information on how to design urban areas ...

They twist and turn across the sky in dense, whirling formations—murmurations of birds that seem to move as one, captivating watchers and puzzling scientists for decades. Now, a new analysis suggests ...

Michael Marshall is a science journalist in Devon, UK. Some 150 million years ago, Europe was tropical — and mostly underwater. The entire continent was closer to the equator than it is today, and ...