The mule deer (Odocoileus hemionus) is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer.
Similar species: Even-toed Ungulates

By Stephen Philips
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Uploaded May 11, 2016. Captured May 8, 2016 18:43 in E Britton Way, Tucson, AZ 85739, USA.