On the outskirts of Mexico City, biologists are working to reintroduce a treasured amphibian to the wild. But first they must revive an ancient method of farming. Credit... Supported by By Jennie Erin ...

A Mexican amphibian, the axolotl is believed by many to be the Aztec god of fire and lightning. His name was Xolotl, and he took the form of a salamander to avoid sacrifice. This lore is perpetuated ...