Ambystoma quetzalcoatli is the first fossil salamander to be formally identified in Mexico, revealing that axolotls have ...

The Mexican axolotl (Ambystoma mexicanum) is famous because adults look like overgrown babies, or tadpoles, retaining juvenile features as adults and capable of remarkable regeneration of lost limbs ...

We’ve all seen some version of the classic evolutionary diagram. A fish crawls out of a primordial swamp, sprouts legs, ...