Humans have long experimented with nature, bending evolution to serve aesthetics, science, and curiosity. Some animals have been transformed so drastically that they seem more like art or engineering ...

Forget fluffy puppies and purring kittens; some people have a fondness for the truly peculiar when it comes to their animal ...

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 ...

This tiny frog has gone viral thanks to a call that sounds more like a squeaky toy than a living creature. Researchers captured the bizarre sound during field recordings and were stunned by its ...

(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 ...