Yellow-backed duiker
These forest dwelling antelope feed selectively on plants or plant parts such as shoots, roots, leaves, and buds, but their diet is mainly made up of fruits. The yellow-backed duiker is more efficient at digesting poor quality food than most other duiker species. This allows them to eat large, low quality fruits. Their diet makes them very hard to keep in captivity as most domesticated fruits are not well suited to their low fiber requirements. They are considered concentrate selectors, meaning they eat "diets relatively low in fiber, have a well developed ability to forage selectively, a rumen bypass, a rapid passage and high fermentation rate for starch, and they frequently encounter toxins."
Antelope jackrabbit
The antelope jackrabbit is the largest "Lepus" species. Its body length ranges from 52 to 58 cm (22 in) long and its tail can be 5 to 10 cm (3 in) long. Its front legs grow to be 10 to 20 cm (3.9 to 7.9 in) and the back legs can grow to be 20 to 30 cm (7.9 to 11.8 in) long. The antelope jackrabbit's ears grow to be 14–17 cm (6 in) and it can weigh up to 9 lbs. This species has a very large skull and a long rostrum. Its ears are extremely long with white on the point and edges. The bi-colored tail is black on top and a pale grey below. The antelope jackrabbit has light grey sides, an orange neck and chest, and a back speckled with black.