white axolotl in closeup, mexican walking fish, underwater salamander, tropical amphibian from mexico, critically endangered

adult ambystoma ambystomatidae amphibian amphibians amphibious animal animals aquaculture aquarium aquatic axolomeh axolotl axolotls chalco closeup critical critically endangered exotic female fish fishes juvenile lake life male marine mature mexican mexicanum mexico mole neotenic pet pets plural popular salamander specie species threatened tropical underwater walking water white yellow