The animal kingdom has so many stranger-than-fiction animals. From a glowing green sea slug to a lizard with a toad's head, these weird animals are some of the most fascinating creatures in the animal ...

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

High-flying acrobats, insane puppetry and performers clad in weird animal masks – so many animal masks, from rams to koalas ...

With an estimated 8.75 million living species on earth, there are always going to be some weird and unusual animals you've never heard of. From the friendly-faced axolotl who's one of the most unusual ...

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 ...

Nature doesn’t try to impress us. It just exists, quietly doing strange, brilliant things whether we’re watching or not. We ...

Findings from the largest-ever survey of endangered flat-headed cats may help change the species’ official conservation status in Thailand Suckerfish—also known as remoras—are harmless, but the whales ...

Wildlife filmmaker stumbles upon a brittle star laying thousands of glowing eggs in Australia – and it's mesmerising to watch.

(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 ...