Its mascot is the Horned Toad. A species of "horned toad", "Phrynosoma douglasii", is named in honor of David Douglas. This "horned toad" also has two short occipital horns. The area's reptilian life include the sidewinder viper, desert tortoise, and horned toad. Numerous frogs, turtles and lizards can be seen, as well as an occasional horned toad.