Modern birds capable of flight all have a specialized wing structure called the propatagium without which they could not fly. The evolutionary origin of this structure has remained a mystery, but new ...

New research on a four-winged dinosaur reveals it was secondarily flightless, with a wing structure and molting pattern.

Next time you look up at the sky at a flock of birds, pay close attention. They might not be what you think they are. Scientists at New Mexico Tech are using birds preserved by taxidermy and turning ...

In front of us was a dinosaur skeleton the size of a large dog. It was obviously a dinosaur, as it had the reinforced pelvis, ...

Horned screamers, the official bird of the Department of Arauca and the Municipality of Arauca in Colombia, could be mistaken for mythical creatures. These fascinating animals have a horn and are ...

Then, the wing flapping starts! The birds continuously flap their wings, pushing their shoulders forward, exposing their bony spurs. It’s the bird equivalent of pulling back your jacket to show an ...

Add Yahoo as a preferred source to see more of our stories on Google. The bird horned screamer, Anhima cornuta, walking on the grass. Brazil© casa.da.photo ...