Although it may look like a whimsical cartoon character, the axolotl (Ambystoma mexicanum) is in serious trouble.
Also known as the Mexican Walking Fish, this critically endangered salamander is naturally found only in the local waterways near Mexico City. Rapid urbanization and subsequent water pollution have destroyed much of the creature's habitat, and the introduction of non-native species into the salamander's habitat had a detrimental impact on dwindling population.