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

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A study of a bizarre prehistoric bird's fossilized remains has ...

If you ever find yourself wandering through the forests of Peru, you’re likely to notice a unique and colorful bird called the Andean cock-of-the-rock. As you’ll see in this YouTube video, this unique ...

Add Yahoo as a preferred source to see more of our stories on Google. Why it's awesome: The hoatzin is often regarded as one of the world's strangest birds. Hatchlings are born with clawed wings — a ...

Researchers have uncovered an intriguing set of never-before-seen features in the skull of Archaeopteryx, an iconic dinosaur that is considered a key transitional fossil in the evolution of birds, a ...

An illustration of the fossil skeleton of the new bird species Imparavis attenboroughi and a reconstruction of what the animal would have looked like in flight ...

Have you ever looked up at the sky just before a hurricane and noticed birds swirling and swooping in ways that seem almost choreographed? It’s not just your imagination—birds really do behave in the ...

(CNN) — A peculiar fossil has helped scientists discover an unusual bird that lived among the dinosaurs 120 million years ago, and the find is changing the way researchers think about avian evolution.