The Axolotl (Ambystoma mexicanum), also known as the Mexican walking fish, is a strictly aquatic salamander species. Like a fish, it eats, sleeps, and breeds underwater. It stops maturing at its larval stage, retaining its dorsal fin and feathery, external gills that allow it to breathe underwater.
These interesting salamanders can only be found in Lake Xochimilco near Mexico City. It can grow up to 12 inches and has an average lifespan of 10-15 years.
