North American porcupine
Some of the larger mammals that frequent the park include the American black bear, cougar, pronghorn, elk, and the most numerous of larger mammals, the mule deer. Smaller mammals such as the American badger, Mexican free-tailed bat, ring-tailed cat, desert cottontail, and North American porcupine also like to call Capulin Volcano National Monument home. The unique landscape and flora create a habitat that allows a large and diverse group of animals to co-exist in a relatively small area. The abundance of diversity is not contained to just warm blooded animals however, Capulin also has a large group of cold blooded reptiles as well. The prairie rattlesnake and bullsnake are seen throughout the park. western fence lizards and horned lizards can be seen collecting the sun's rays on the multiple hiking trails. The tiger salamander is spotted in pools of water that sometimes collect around the park.