Ungulates, The term "ungulates," in its most common meaning and in this article, refers to animals with hooves, coverings of horn that protect the toes. Among these animals are camels, cows, giraffes, hogs, horses, and rhinoceroses. Many zoologists also use the term “ungulates” to refer to aardvarks, conies, dugongs, elephants, manatees, and whales—animals related to hoofed animals.Gazelles are ungulates.
Most ungulates are herbivores, animals that eat only plants. Many ungulates are also ruminants, animals that chew cud. Ungulates generally live in groups, called herds. A herd may contain hundreds of animals.
Ungulates are divided into two major categories: odd-toed and even-toed. Odd-toed ungulates include members of the horse family, tapirs, and rhinoceroses. The main axis of the foot passes through the third toe, which is normally larger than the others. Horses and their relatives have only this enlarged toe (the first and second toes have disappeared) and stand on its tip. Rhinoceroses have three toes on each foot. Tapirs have four toes on each forefoot, three on each hind foot. Most of the even-toed ungulates have cloven hooves. The main axis of the foot passes between the third and fourth toes, which are fused, giving an appearance of a single split toe.
Odd-toed ungulates form the order Perissodactyla; even-toed ungulates form the order Artiodactyla.