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 ...

My friend Trip Lamb’s recent photographs from Africa reinforced for me the value of vicarious ecology, which I define as enjoying someone else’s outdoor experiences. Vicarious ecology offers ways to ...

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 ...