The species of Zhengheornis buyu, the smallest known long-tailed bird, and the skeletal reconstruction image of it Photo: ...

Reconstruction of a Late Triassic landscape (approximately 215 million years ago). A lagerpetid, a close relative of pterosaurs, is perched on a rock, observing pterosaurs flying overhead. Tübingen, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a fossil ...

In a study of fossils, a research team led by evolutionary biologist and Johns Hopkins Medicine assistant professor Matteo Fabbri suggests that a group of giant reptiles alive up to 220 million years ...

At first glance, bats and birds appear remarkably similar. Both dominate the skies, possess wings, and have evolved the ...

An analysis of two theropod dinosaur fossils has shown that they had a type of carpal bone (pisiform) in their wrists—a bone considered important to flight in birds. This discovery by a team of ...

For centuries, scientists have observed that animals in warmer climates have longer limbs—a pattern known as Allen's Rule. Long attributed to the need to maintain body temperature, the precise ...

In a study of fossils, a research team led by an evolutionary biologist at Johns Hopkins Medicine suggests that a group of giant reptiles alive up to 220 million years ago may have acquired the ...

Scientists with the Field Museum of Chicago have discovered that a pigeon-sized Archaeopteryx fossil in its collection displays an array of features previously unknown when it comes to the earliest ...

(CNN) — When a fossil preserves an animal’s complete body in a death pose, seeing it is observing a snapshot in time. Several such fossils exist for Archaeopteryx — the earliest known bird — and now, ...