Birds are some of nature’s most beautiful creatures — but a few of our feathered friends are truly bizarre — like these 25 weirdest birds in the world.

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

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 ...

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 ...

A Michigan State University study, reported on by Earth.com, revealed thousands of bird species' survival habits. Many won't survive the changing climate. Researchers studied the link between bird ...

Island birds display unique adaptations, known as island syndrome, with scientists noting changes in reproduction, flight ability, and behavior. These evolutionary shifts, driven by stable ...

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. The ...