A large ruminant used in Asia and Africa for carrying
   burdens and for riding. The camel is remarkable for its ability to go a
   long time without drinking. Its hoofs are small, and situated at the
   extremities of the toes, and the weight of the animal rests on the
   callous. The dromedary (Camelus dromedarius) has one bunch on the back,
   while the Bactrian camel (C. Bactrianus) has two. The llama, alpaca,
   and vicua, of South America, belong to a related genus (Auchenia).