The Addax nasomaculatus was formerly present throughout the Sahara. A grazing antelope and an even-toed ungulate, it tends to live far from water. It has a long tail with a black tip, and a coat that is greyish white with a white belly and rump. It has long twisted horns which appear on both sexes and can be as long as 43 inches. It grazes in herds of up to 300, chews a cud and can survive without water for days at a time.

Really, I just like this one because I get to use the word ungulate in a sentence.