The brush deer, also known as the Mexican mule deer, is a fascinating animal that is found in the southwestern United States and Mexico. This deer is often identified by its unique appearance, with its large ears and dark, brushy coat. While brush deer is the most commonly used name for this animal, there are plenty of synonyms as well. Some of the most popular synonyms for the brush deer include the black-tailed deer, the gray deer, and the burro deer. These names can often be used interchangeably when discussing this fascinating species, and are all great ways to further appreciate the beauty of this unique animal.