Small varieties of African antelope include the dik-dik, the duiker bok, the royal antelope and the steenbok. Some varieties of these antelopes are no larger than jackrabbits.
The dik-dik is about 20 to 26 inches long and stands between 12 and 16 inches tall at the shoulder. It usually weighs between 6 and 13 pounds. Only the males have horns, which may be hidden by a tuft of hair. One type of dik-dik has a particularly long snout that is an adaptation to promote cooling.
The duiker bok, or duiker, is an antelope that lives in the forests of Southern Africa. The bush duiker weighs about 40 pounds though some types of duikers can weigh as little as 7 pounds.
The steenbok also stands between 16 and 24 inches at the withers. Steenboks have tiny tails and long ears. The males have long, straight horns. Found in southern and eastern Africa, the steenbok is small enough to shelter in burrows vacated by aardvarks.
The tiny royal antelope stands only about 10 inches at the shoulder and is about 16 to 20 inches long. It only weighs between 3 and 7 pounds. As with the dik-dik, only the males have horns.