Earth is full of bizarre creatures, with more being discovered each year. As documented in the scientific journal Species ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The story of two of ...

Nature doesn’t always play by the rules. For every majestic lion or elegant eagle, there’s a creature so bizarre it looks like a science experiment gone rogue.

Animals have a way of breaking our expectations. That is why so many weird animal facts sound fake when you hear them for the ...

The Earth is home to some amazing animals, and many of them are well-known. Everybody knows how quick cheetahs are, how big elephants can grow, and how adorable chipmunks can be. But there are some ...

(CNN) — The story of two of the strangest animals on the planet just got a little stranger, thanks to clues revealed by a lone fossil specimen that scientists now say represents a long-extinct ...