A team of scientists has mapped the regions surrounding stem cells in planarians—small flatworms that are famous for being able to regrow whole bodies from small fragments—and discovered something ...

Bone can heal itself, but not always in the ways we expect. Some animals regrow entire limbs. Others, like humans, can only manage a few millimeters at the tip of a finger. This wide range in ...

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 (Ambystoma mexicanum) have the incredible ability to regenerate limbs, and even entire organs. And of course, people want to know how we might get our own human bodies to do it, too. A team ...

This ability is widespread in the animal kingdom, but its distribution is spotty. Salamanders are the best-known regenerators, but cockroaches can regrow legs, Drosophila can renew discs, deer regain ...