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 ...

Although often glossed over, the human liver is a pretty amazing organ. Not just because it’s pretty much the sole thing that prevents our food from killing us, but also because it’s the only organ in ...

MEXICO CITY (AP) — Legend has it the axolotl was not always an amphibian. Long before it became Mexico’s most beloved salamander and efforts to prevent its extinction flourished, it was a sneaky god. ...

MEXICO CITY, Mexico — Legend has it the axolotl was not always an amphibian. Long before it became Mexico’s most beloved salamander and efforts to prevent its extinction flourished, it was a sneaky ...

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

(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 ...