Playing in the NFL is tough. This is a well established fact. But two recent and key retirements illustrate just how harsh it can be.

The adorable pink salamanders are helping scientists investigate a serious question: Could the human body be coaxed to regrow ...

Axolotls, with their signature smiles and pink gills, are the celebrities of the salamander world. But they are more than ...

A better understanding of how these amphibians grow new appendages may lead to better wound healing—or even new limbs—in humans.

“We discovered it’s essentially a single enzyme called CYP26b1, that regulates the amount of tissue that regenerates,” ...