Mule Deer

Two large mule deer stand alert to potential predators.

NPS/ Todd Miller

Mule deer (Odocoileus hemionus) get their name from their oversized long ears that somewhat resemble those of a mule. With predators such as mountain lions, mule deer have adapted to make quick escapes. Their large eyes located on the sides of their head allow for a 310 degree view. This adaptation allows the deer to spot their predator and may just give them a fraction of time to begin their escape.

In a movement called stotting, all four legs simultaneously propel the deer in an up and forward motion. This gait allows them to clear thick patches of brush and to see obstacles that might impede their path. Mule deer can leap up to 24 feet and reach speeds up to 45 miles per hour for short bursts of time.

Mule deer browse in shrubby areas. Does will leave their fawns in the underbrush while they are away. The fawn does not have an obvious odor that gives it away to predators. When threatened by a predator the doe will press down on the fawn’s shoulders until the fawn lays down. Once the fawn is bedded down the doe will attempt to lead the predator away.