Hallucigenia was such an odd animal that palaeontologists reconstructed it upside-down when they first analysed its fossils - ...

An artist’s impression depicts Kryoryctes at Dinosaur Cove in Australia. New research supports the hypothesis that Kryoryctes is a common ancestor of both the platypus and echidna. - Peter Schouten ...

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 ...

(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 ...

Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...

(via Kurzgesagt) The ocean sunfish, or Mola, is one of the strangest animals alive. A massive, flat, derpy giant that eats jellyfish, drifts aimlessly, and carries parasites that even have smaller ...

Forget fluffy puppies and purring kittens; some people have a fondness for the truly peculiar when it comes to their animal companions. We’re talking about creatures that'll make you raise an eyebrow ...

Wondering about the weirdest animals in the world? We've listed the Top 31 here — including the axolotl, aye-aye, blobfish, ...

The Earth is home to some amazing animals, and many of them are well-known. Everybody knows how quick cheetahs are, how big ...