Also known as the “Anti-Dork Antelope.” Not really. These are springbok.
The springbok has four remarkable characteristics. It is among the most dramatically colored of the antelopes, with the starkest contrast between the dark lateral stripe and the light brown (above) and white (below) fur. It is the fastest of the antelopes, by far. Lions and leopards need not apply: These are too fast for you to catch. It is one of the most rapidly reproducing of the antelopes, and will pump out little antelope babies as long as there is grass to eat. In the kalahri, where this photograph was taken, some years have very little food and other years have plenty. In years of plenty the springbok may have two or close to two and a half breeding seasons. The sprinbok has a strange skin flap along its back that it can stick up to display a dark dorsal stripe. This is done during pronking, a ritual behavior in which the animal shows of mainly to predators (“See, I am a totally tubular springbok. Don’t even bother running after me.”). The springbok that does not pronk is the special focus of attention for the only predator that can eat these guys on a regular basis. Which leads me to the final interesting fact about springoks: They are arguably the best tasting of the African antelopes. No kidding.
And, of course, the predator that eats them is the cheetah. Because they are so fast.