Fortunately, lost limbs regrow and are functional in as few as eight weeks. To achieve this feat, the regrowing body parts must "know" their position within the axolotl body to regenerate the ...

Axolotls can regrow limbs. Could they one day help us do the same? A better understanding of how these amphibians grow new appendages may lead to better wound healing—or even new limbs—in humans.

Axolotls, with their signature smiles and pink gills, are the celebrities of the salamander world. But they are more than just cute: They might also hold the secret to regenerating human limbs.

Although often glossed over, the human liver is a pretty amazing organ. Not just because it’s pretty much the sole thing that ...

Importantly, the work found that retinoic acid helps tell the axolotl which type of limb to regrow. It makes sure the animal doesn’t generate an entire arm when it only needs a hand, for example.

When axolotls were given a drug that blocked the breakdown of retinoic acid, their limbs didn't regrow right -- an upper arm would form where a lower arm should be.

For axolotls, it may take only a couple of days to regrow their tiny hands, but in a fully grown human, that process could take years, McCusker said. “It’s important that we continue to do ...

The axolotl seems like something out of science fiction. This perpetually youthful-looking Mexican salamander possesses a superpower that defies biology as we know it: the ability to regenerate ...

Imagine a world where you can regrow a lost limb. Scientists are hoping to make that vision a reality by uncovering the secrets behind one creature's remarkable ability.

Too much retinoic acid, and a limb can grow back deformed and extra-long, with segments and joints not present in a well-formed leg, hampering an axolotl’s ability to easily move.

With its fascinating ability to regrow entire limbs and internal organs, the Mexican axolotl is the ideal model for studying regeneration. Scientists have now found a factor that tells cells which ...