Be it unique defense mechanisms, hunting techniques, or mating habits, strange animal behaviors are a part of evolution. This ...

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

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

The natural world is full of animals that seem to defy logic, blurring the line between reality and imagination. Some look ...

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 ...

Few have explored the ocean’s deepest depths – but those rare few have shared images of the strangest, most mysterious ...

Strange animals found at the bottom of the ocean challenge our current understanding of life, scientists have said. Researchers diving almost 10,000 meters deep into the Pacific Ocean found tube worms ...

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 ...