Pack animals

thumb|External anatomy of a horse|upright=1.5|alt=Diagram of a horse with some parts labeled.

The donkey or ass is a domesticated equine. It derives from the African wild ass, Equus africanus, and may be classified either as a subspecies thereof, Equus africanus asinus, or as a separate species, Equus asinus. It was domesticated in Africa some years ago, and has been used mainly as a working animal since that time.

species of large bovid originating in South Asia

The reindeer or caribou (Rangifer tarandus) is a species of deer with circumpolar distribution, native to Arctic, subarctic, tundra, boreal, and mountainous regions of Northern Europe, Siberia, and North America. It is the only representative of the genus Rangifer. More recent studies suggest the splitting of reindeer and caribou (North American terminology). "All caribou and reindeer throughout the world are considered to be the same species, but there are 7 subspecies."

The mule is a domestic equine hybrid between a donkey and a horse. It is the offspring of a male donkey (a jack) and a female horse (a mare). The horse and the donkey are different species, with different numbers of chromosomes; of the two possible first-generation hybrids between them, the mule is easier to obtain and more common than the hinny, which is the offspring of a male horse (a stallion) and a female donkey (a jenny).

The llama (; or ) (Lama glama) is a domesticated South American camelid, widely used as a meat and pack animal by Andean cultures since the pre-Columbian era.

The dromedary (Camelus dromedarius), also known as the dromedary camel, Arabian camel and one-humped camel, is a large camel of the genus Camelus with one hump on its back. It is the tallest of the three camel species; adult males stand at the shoulder, while females are tall. Males typically weigh between , and females weigh between . The dromedary's distinctive features include its long, curved neck, narrow chest, a single hump, and long hairs on the throat, shoulders, and hump. The coat is generally a shade of brown. The hump, tall or more, is made of fat bound together by fibrous tissue.

species of mammal

right|thumb|Zebu oxen in [[Mumbai, India]] thumb|Ploughing with Oxen by George H. Harvey, Nova Scotia, Canada, 1881 thumb|Oxen used for plowing, 2013 thumb|right|Boy on an ox-drawn cart in Niger thumb|Ox skull An ox (: oxen), also known as a bullock (in British, Australian, and Indian English), is a large bovine, trained and used as a draft animal. Oxen are commonly castrated adult male cattle, because castration inhibits testosterone and aggression, which makes the males docile and safer to work with. Cows (intact females) or bulls (intact males) may also be used in some areas.

The yak (Bos grunniens), also known as the Tartary ox, grunting ox, hairy cattle, sarlak or sarlyk, or domestic yak, is a species of long-haired domesticated cattle found throughout the Himalayan region, the Tibetan Plateau, Tajikistan, the Pamir Mountains, and as far north as Mongolia and Siberia. It is descended from the wild yak (Bos mutus).

individual or type of working animal used by humans