Axolotls can regrow body parts scientists still struggle to explain.

Axolotls can regenerate limbs and other tissues, which is why scientists study them for clues about healing.

The axolotl is a species of mole salamander. It is neotenic, reaching sexual maturity without undergoing metamorphosis, and the adults remain fully aquatic with obvious external gills. Axolotls may be difficult to distinguish from the larval stage of other neotenic adult mole salamanders, in particular the tiger salamander, or other species such as mudpuppies.

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