Most bird bones are very thin, an adaptation to lighten the skeleton for the purpose of flight. So as a result their delicate bones do not fossilize well, which is why when even a single isolated ...

In the Mesozoic Era, 70 million years before birds first conquered the skies, pterosaurs dominated the air with sparrow- to Cessna-sized wingspans. Researchers suspected that these extinct reptiles ...

Look at the length of your pinky finger. There was once a teeth-bearing, claw-wearing bird on this planet that was just that small. About a decade ago, scientists unearthed the fossilized remains of a ...