Grand Canyon National Park has over 75 species of mammals and 50 species of reptiles and amphibians.
Two of the park’s most famous inhabitants are the Albert squirrel and the Kaibab squirrel, close cousins that have evolved differently on either side of the gigantic canyon.
Mule deer are seen frequently throughout the park, while desert bighorn sheep inhabit the more remote slopes and are only occasionally seen. Bobcats and coyotes range from rim to river, and a small, yet growing, population of mountain lions exists in the park. Specific to the North Rim is also an increasingly large herd of Bison, which roam freely along the roads. Among the smaller mammals that inhabit Grand Canyon are ringtails (closely related to raccoons), beavers, gophers, chipmunks, rabbits and bats.
Reptiles and amphibians are represented by a wide variety of lizards, snakes (including the unique Grand Canyon “pink” rattlesnake), turtles, frogs, toads and salamanders.