Antelope jackrabbit
The antelope jackrabbit feeds on cacti, grasses, and other leafy vegetation. This species has been observed digging and eating soil in an attempt to intake minerals and other nutrients. They can be classified as folivores and graminivores.
Royal antelope
The royal antelope is the smallest antelope in the world; it is the smallest ungulate and ruminant as well. Bates's pygmy antelope is only slightly larger. The royal antelope reaches merely at the shoulder and weighs . The head-and-body length is typically . A characteristic feature is the long and slender legs, with the hindlegs twice as long as the forelegs – a remarkable similarity to the hare. The thin tail, long, is white on the underside, ending in a white tuft. The species is sexually dimorphic, with females being larger than males. Only males possess horns, these being short, smooth, ventrally reflexed spikes measuring long.