(CNN) — A tiny creature with frilly gills, a polite smile and glowing green skin just gave scientists a major clue to solve one of biology’s biggest mysteries: limb regeneration. Aquatic salamanders ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers are studying axolotls -- "small, smiling salamanders" -- in the hopes of learning how humans might one day regrow arms ...

In this video, I transformed an abandoned axolotl's enclosure into a new home for a super rare axolotl that can glow in the dark. Watch to the end to see the transformation! #axolotl #pet #aquarium ...

Add Yahoo as a preferred source to see more of our stories on Google. A tiny creature with frilly gills, a polite smile and glowing green skin just gave scientists a major clue to solve one of biology ...

With their goofy grins and feathery gills, axolotls have become stars of the pet world and video games like Minecraft. But these small, smiling salamanders are also helping scientists explore a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A tiny creature ...