Scans of the most well-preserved fossil of a prehistoric flying reptile with intact feathers have revealed how the first birds managed to fly while their non-bird dinosaur cousins could not. The ...

For centuries biologists have known that bird bones are hollow, and even elementary school children know that bird skeletons are lightweight to offset the high energy cost of flying. Nevertheless ...

How dinosaurs were built to fly. Like feathers, most of the other traits needed for flight also evolved long before the first birds. Scientists believe many of these features appeared at various ...

When birds lose the ability to fly, their bodies change faster than their feathers Date: February 27, 2025 Source: Field Museum Summary: Researchers examined dozens of bird species in museum ...

Researchers examined dozens of bird species in museum collections looking for differences in the feathers and bodies between birds that can fly and birds that can't. They found that when birds ...