Healing skin and regrowing limbs: The science of regeneration

An albino Axolotls is pictured at the laboratory of ecological restoration of the Autonomous University of Mexico in Mexico City. (RONALDO SCHEMIDT/AFP/Getty Images)

An albino Axolotls is pictured at the laboratory of ecological restoration of the Autonomous University of Mexico in Mexico City. (RONALDO SCHEMIDT/AFP/Getty Images)

We all know what happens when you get a cut or scrape. You get a scab, you try not to pick at it, and then after a little while it heals. But what’s really going on under that scab? What superpowers does our skin have to repair itself? And what about other animals like salamanders that can do some pretty extreme healing? We’re going under the skin for this one.

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