A colossal solar filament over twice the distance between Earth and the moon erupted from the Sun's northern hemisphere ...

For centuries, scientists have observed that animals in warmer climates have longer limbs—a pattern known as Allen's Rule.

Based on what we know of living birds with long wings, the role of tertial feathers is primarily to close the wing gap and ...

Archaeopteryx is the fossil that proved Darwin right. It's the oldest known fossil bird, and it helps show that all birds— ...

The Chicago specimen is the smallest Archaeopteryx ever discovered, about the size of a pigeon. It was found in limestone ...

Key to the first bird’s flight was likely a set of never-before-seen feathers, called tertials, found on the upper arm of the ...

It’s the first known time the 3D printed fixator has been used to help stabilize the broken bones of a bird’s wing in Hawaii. Other birds, like Polly the duck in Texas, have gotten other help ...