Roan antelope
Roan antelope are found in woodland and grassland savanna, mainly in the tropical and subtropical grasslands, savannas, and shrublands biome, which range in tree density from forest with a grassy understorey (such as central Zambezian Miombo woodlands) to grasslands dotted with few trees, where they eat midlength grasses. They form harem groups of five to 15 animals with a dominant male. Roan antelope commonly fight among themselves for dominance of their herd, brandishing their horns while both animals are on their knees.
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.