Mule Deer

The mule deer (Odocoileus hemionus) is a deer indigenous to western North America, named for its large mule-like ears. There are believed to be several subspecies, including the black-tailed deer. Unlike its cousin, the white-tailed deer, mule deer are generally more associated with the land west of the Missouri River, and more specifically with the Rocky Mountain region of North America. Mule deer have also been introduced to Argentina.