Could humans be capable of growing new limbs? Scientists are trying to figure that out with the aid of an unexpected resource: salamanders. Research shows that the amphibians' regeneration abilities ...

Here’s what you’ll learn when you read this story: Axolotls are known for their ability to grow back just about any body part that is bitten off by a predator, but the trigger for this regeneration ...

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

Axolotls are known for their ability to grow back just about any body part that is bitten off by a predator, but the trigger for this regeneration was a mystery until now. It turns out that retinoic ...