Only two dinosaur species are known to have had wings made out of stretched skin, like bats. But unlike bats, these dinos were capable of only limited gliding between trees, a new anatomical analysis ...

The new species, a member of the poorly understood scansoriopterygid group of dinosaurs, likely weighed less than 450 grams (15.9 ounces), with a skull that was a mere four centimeters (1.6 inches) ...

Some feathered dinosaurs may have briefly taken to the skies—only to give it up later. By studying rare fossils with ...