The fossil was tiny—about the size of a modern sparrow—but it had features in common with a larger fossil bird called Longipteryx. "It had really big teeth at the end of its beak, just like ...

For paleontologists who study animals that lived long ago, fossilized remains tell only part of the story of an animal's life. While a well-preserved skeleton can provide hints at what an ancient ...

The identification of part of the fossilized remains of a so-called "terror bird" species in South America has given researchers new insight into the apex predators ...

A near complete skull fossil found in Antarctica has revealed the oldest known modern bird — a mallard duck-size creature related to the waterfowl that live by lakes and oceans today, a new study has ...

(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, ...

Argentavis magnificens was so massive it should’ve stayed grounded. Yet, this giant prehistoric bird still ruled the skies of ...

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

The fossil of a Jurassic bird unearthed in southeastern China has major implications for the history of avian evolution, researchers say. The newly discovered Baminornis zhenghensis, a quail-sized ...

Spiked armor, tyrannosaurids, and new discoveries from the early development of birds mark important milestones in 2025.