Mule deer are one of the majestic icons of the classic American West. They gained their name from their large, mule like ears which can move independent of each other. They stand just over 40 inches tall at the shoulders and weigh an average of 200 pounds. The males, or bucks, have antlers as well as a larger body than the females, known as does. Mule deers are incredibly fast, able to reach speeds of up to 45 miles per hour and able to change directions in a single bound. They have a unique leaping gait where all four of their legs touch the ground at the same time while running.