closeup on an adult of the endangered neotenic anderson's salamander, ambystoma andersoni, underwater

amphibia achoque ambystoma ambystomatidae amphibian anomaly chordata caudata ecology endangered mexico magnification mexican nature status animal aquatic axolotl beautiful biology close closeup detailed endemic gills gorgeous herpetology macro neotenic newt outdoors paedomorph photograph predator rare salamander single underwater vertebrate wild wildlife odd bizarre