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.
Bongo (antelope)
Bongos require salt in their diets, and are known to regularly visit natural salt licks. Examination of bongo feces revealed that charcoal from trees burnt by lightning is consumed. This behavior is believed to be a means of getting salts and minerals into their diets. This behavior has also been reported in the okapi. Another similarity to the okapi, though the bongo is unrelated, is that the bongo has a long prehensile tongue which it uses to grasp grasses and leaves.