Biology
Why Can Axolotls Regrow Lost Limbs?
Quick fact
Axolotls can regenerate not only limbs but also parts of their heart, spinal cord, and even brain tissue without scarring.
Why this is interesting
Imagine losing an arm and watching it grow back—exactly as it was, bones, muscles, nerves, and all. That’s a routine event for the axolotl, a salamander that defies the typical limits of healing.