There are many different species of antelope and several of these antelope species are small in stature, the royal antelope is the world's smallest antelope at an approximate height of 10 inches, according to the Smithsonian. Another small species of antelope are called dik-diks and grow to an approximate height of 12 inches.
These small antelope fall prey to leopards, hyenas, jackals and eagles as well as humans. One of the common unifying characteristics of all antelopes is that every antelope species has horns. These horns are typically found only on males, but they are present in every species. They are also attached to the antelope's head permanently and can in no way be severed except with traumatic effects.