Mule deer (Odocileus hemionus) is a species of deers. They are sometimes called black-tailed deer. They live in western North America. Their name was given to them because of their mule-like ears. There are many subspecies, including the black-tailed deer. Unlike the white-tailed deer, mule deer lives on land west of the Missouri River. They also live in the Rocky Mountains region of North America. Mule deer have been introduced to Argentina.
|Mule deer male and female in Modoc County, California|
- Novak, R. M. (1999). Walker's Mammals of the World. 6th edition. ISBN 0-8018-5789-9
- Reid, F. A. (2006). Mammals of North America. 4th edition. ISBN 978-0-395-93596-5
- Heffelfinger, J. (Ver. 2, March 2011). Tails with a dark side: The truth about whitetail–mule deer hybrids.
- Geist, V. (1998). Deer of the world: their evolution, behaviour, and ecology. ISBN 978-0-8117-0496-0
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