Researchers calculated the flight ability of more than 80 ancient cicada species to analyze their evolution over time.

New fossil scans reveal that a tiny wrist bone in dinosaurs may have set the stage for the evolution of bird flight.

Despite how we usually depict them, the hilarious truth is that many dinosaurs who once roamed our Earth, did so with a ...

An analysis of two theropod dinosaur fossils has shown that they had a type of carpal bone (pisiform) in their wrists—a bone ...

What we do know is that bird evolution was complicated. Many characteristics of birds seem to have evolved multiple times in dinosaurs, across numerous families. One of the main traits of birds today, ...

Here’s everything you need to know about the animal classification of birds and evolution. Are birds reptiles? Yes and no: It depends on how you classify animals.

The updated bird family tree delineating 93 million years of evolutionary relationships between 363 bird species. CREDIT: Jon Fjeldså (drawings) and Josefin Stiller.

Scientists have uncovered a surprising piece of the puzzle in the evolution of flight: a tiny wrist bone in certain dinosaurs ...

Scientists uncovered a 149-million-year-old bird fossil in southeastern China with unexpectedly modern traits they believe could rewrite the evolutionary history of birds. The recently discovered ...

The fossil skeleton of a newly discovered dinosaur species was found in a pose suggesting it slept like modern birds. This sleeping behavior may have been more common than expected among non-avian ...

Unlike birds, the evolution of bats’ wings and legs is tightly coupled, which may have prevented them from filling as many ecological niches as birds.