15 of the Strangest Animals in the World and Where to See Them

5: Axolotl
This remarkable amphibian is native to a small series of lakes and canals near Mexico City. Once numbering in the thousands and providing an important food source for the Aztec, the wild population of axolotl is thought to have dwindled to just a few individuals due to habitat loss. Axolotl can grow to lengths of 18 inches, and they are characterized by a unique set of external gills along with the ability to completely regrow lost limbs.