Zion has four species of native fish, five species of non-native fish, six species of amphibians, and twenty-nine species of reptiles. Look for Lizards almost anywhere there is sand or slickrock, and Canyon Treefrogs on the rocks near rivers and streams.
Nearly seventy different species of mammals reside in Zion National Park. Visitors often see bats, chipmunks, squirrels, Desert Bighorn Sheep, and Mule Deer. When you encounter a wild animal in Zion please remember not to feed it, it's against the law and it causes harm.
There are at least two-hundred species of birds in Zion National Park, but the number may be closer to three-hundred. Of note among these many inhabitants are the Peregrine Falcon, and the California Condor. Each year in the spring and summer Peregrine Falcons return to Zion to breed and raise their young. California Condors have been increasingly seen in the canyon, especially on and around Angels Landing.
Zion National Park is home to numerous species of insects, spiders, centipedes, and millipedes. Zion is also home to the largest spider in the southwest, the Tarantula. Contrary to popular belief Tarantulas very rarely bite, and even if they do, their venom is considered non-toxic to humans.