Dominican nuns at a monastery in Mexico have become unlikely conservation heroes, maintaining the world’s largest captive population of critically endangered achoque salamanders, which number fewer than 150 in the wild.

Nuns, scientists & microchips: An alliance to save Mexico’s achoque salamanders
In a monastery beside a 16th-century basilica in Pátzcuaro, Mexico, Dominican nuns move between rows of aquarium tanks, checking water quality and feeding earthworms to hundreds of brown salamanders…