California Myotis
Certainly one of the more interesting species found within the park is that of the California Myotis. As a subspecies unique to the area, the bats of Zion National Park and its surrounding environment are truly unique creatures. They are small in stature, about 2 inches in length of body, with long ears and fur on their wings, which they use to feel their way through very dark caves. Most of their diet consists of flying insects, foraging for them in the night skies over Zion. California Myotis often stay in huge colonies of thousands of individuals in a single cave. This behavior allows them to protect themselves from predators and to find food.
Mountain Cottontail
The next well-known animal in the P\park is the Mountain Cottontail. This bunny can be found throughout Zion National Park often on trails and in meadows. This is a medium-sized rabbit, 12 to 16 inches long in body length with grayish-brown fur that aids in camouflaging. Mountain Cottontails primarily eat grasses and other vegetation, although the species does eat small insects as well. They are very fast runners and in most instances, they are seen to hopping away as they spot people. In their case, they mostly live alone but they can be seen together during winter seasons when the food is more scarce.
White-tailed Antelope Squirrel
Another interesting mammal species found within Zion National Park is the White-tailed Antelope Squirrel. These little squirrels are typically 8-10 inches long, grayish-brown in color, and have white stripes running down their backs. They inhabit the desert areas of the park and can be frequently observed on the ground foraging for seeds, nuts, and other small bits of food.
The White-tailed Antelope Squirrels are also great climbers of trees, often found there searching for food. They usually live a solitary life, it is only during the breeding season that they are found to be together, as they gather to mate for new generations of squirrels.

American Beaver
The American beavers are not the most frequently spotted, but they are usually found in streams and rivers throughout the park. Mostly, they are spotted while building their lodges and dams. Beavers have big bodies, with an average body length ranging from 24 to 48 inches, weighing as much as anywhere from 50 to 60 pounds. American Beavers are vegetarians and feed mainly on woody plants like trees and shrubs. They build dams for controlling the flow of water in rivers and streams, thus creating wetlands that offer sanctuary to so many other species of wildlife.