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Cattle (Bos taurus)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Bovidae
Subfamily: Bovinae
Tribe: Bovini
Genus: Bos
Linnaeus, 1758
Type species
Bos taurus [1]

See § Species.

Bos (from Latin bōs : cow, ox, bull) is a genus of bovines, which includes, among others, wild and domestic cattle.


Bos is often divided into four subgenera: Bos, Bibos, Novibos, and Poephagus, but including these last three divisions within the genus Bos without including Bison is believed to be paraphyletic by many workers on the classification of the genus since the 1980s. The genus as traditionally defined has five extant species, [2] but this rises to eight when the domesticated varieties are counted as separate species, and ten when the closely related Bison is also included. [3] [4] [5] Most but not all modern breeds of domesticated cattle (including taurine cattle and zebu) are believed to have originated from the extinct aurochs. [6] [7] Others like Bali cattle and gayal are thought to have originated from South and Southeast Asian Bos species.


The species are grazers, with large teeth to break up the plant material they ingest. They are ruminants, having a four-chambered stomach that allows them to break down plant material. [6]


There are about 1.3 billion domestic cattle alive today, making them one of the world's most numerous mammals. Members of this genus are currently found in Africa, Asia, Europe, parts of North America, South America and also in Oceania. Their habitats vary greatly depending on the particular species; they can be found in prairies, rain forests, wetlands, savannah and temperate forests.


Most Bos species have a lifespan of 18–25 years in the wild, with up to 36 being recorded in captivity. They have a 9–11 month gestation, depending on the species and birth one or, rarely, two young in the spring.[ citation needed ]

Most species travel in small herds ranging in size from ten to thirty members. Within most herds, there is one bull (male) for all the cows (female). Dominance is important in the herds; [6] calves will usually inherit their mother's position in the hierarchy.[ citation needed ]

They are generally diurnal, resting in the hot part of the day and being active morning and afternoon. In areas where humans have encroached on the territory of a herd, they may turn nocturnal. Some species are also migratory, moving with food and water availability.[ citation needed ]


In 2003, the International Commission on Zoological Nomenclature resolved a long-standing dispute about the naming of those species (or pairs of species) of Bos that contain both wild and domesticated forms. The commission "conserved the usage of 17 specific names based on wild species, which are pre-dated by or contemporary with those based on domestic forms", confirming Bos primigenius for the aurochs and Bos gaurus for the gaur. If domesticated cattle and gayal are considered separate species, they are to be named Bos taurus and Bos frontalis; however, if they are considered part of the same species as their wild relatives, the common species are to be named Bos primigenius and Bos gaurus. [8]

During the 2010s, analysis of the complex genetics of the bovine lineages determined that the genus Bison needed to be relegated to a subgenus of Bos in order to retain monophyly within Bos since both extant species of Bison are phylogenetically embedded within Bos. [5] The specific relationships in these analyses determined that the two living bison species were each other's closest living relatives, with their closest relatives amongst Bos being the yaks based on nuclear DNA. The mitochondrial DNA for the wisent was found to contradict the nuclear DNA result, and was more closely related to those of cattle, while the mitochondrial DNA of the American bison supported the nuclear DNA result of a close relationship with yaks. The discrepancy between the mitochondrial DNA of the American bison and wisent is suggested to be likely due to incomplete lineage sorting or genetic introgression into B. bonasus from other Bos species. [5] [9] [10]

Relationships of members of the genus Bos based on nuclear genomes after Sinding, et al. 2021. [11]


Bos primigenius + Bos taurus (aurochs and cattle)

Bos mutus (wild yak)

Bison bison (American bison)

Bison bonasus (European bison/wisent)

Bos javanicus (banteng)

Bos gaurus (gaur)

Bos sauveli (kouprey)


The following species are known: [2] [12]

See also

Related Research Articles

<span class="mw-page-title-main">Aurochs</span> Extinct species of large cattle that inhabited Asia, Europe and Northern Africa

The aurochs is an extinct cattle species, considered to be the wild ancestor of modern domestic cattle. With a shoulder height of up to 180 cm (71 in) in bulls and 155 cm (61 in) in cows, it was one of the largest herbivores in the Holocene; it had massive elongated and broad horns that reached 80 cm (31 in) in length.

<span class="mw-page-title-main">Bison</span> Genus of mammals

A bison is a large bovine in the genus Bison within the tribe Bovini. Two extant and numerous extinct species are recognised.

<span class="mw-page-title-main">European bison</span> Eurasian species of mammal

The European bison or the European wood bison, also known as the wisent, the zubr, or sometimes colloquially as the European buffalo, is a European species of bison. It is one of two extant species of bison, alongside the American bison. The European bison is the heaviest wild land animal in Europe, and individuals in the past may have been even larger than their modern-day descendants. During late antiquity and the Middle Ages, bison became extinct in much of Europe and Asia, surviving into the 20th century only in northern-central Europe and the northern Caucasus Mountains. During the early years of the 20th century, bison were hunted to extinction in the wild.

<span class="mw-page-title-main">Zebu</span> South Asian domestic cattle

The zebu, sometimes known in the plural as indicine cattle, Camel cow or humped cattle, is a species or subspecies of domestic cattle originating in South Asia. Zebu, like many Sanga cattle breeds, differs from taurine cattle by a fatty hump on their shoulders, a large dewlap, and sometimes drooping ears. They are well adapted to withstanding high temperatures and are farmed throughout the tropics.

<span class="mw-page-title-main">Bovinae</span> Subfamily of mammals

Bovines comprise a diverse group of 10 genera of medium to large-sized ungulates, including cattle, bison, African buffalo, water buffalos, and the four-horned and spiral-horned antelopes. The evolutionary relationship between the members of the group is still debated, and their classification into loose tribes rather than formal subgroups reflects this uncertainty. General characteristics include cloven hooves and usually at least one of the sexes of a species having true horns. The largest extant bovine is the gaur.

<span class="mw-page-title-main">Gaur</span> Largest species of the bovid family

The gaur is a bovine native to South Asia and Southeast Asia, and has been listed as Vulnerable on the IUCN Red List since 1986. The global population was estimated at a maximum of 21,000 mature individuals in 2016, with the majority of those existing in India.

<span class="mw-page-title-main">Yak</span> Long-haired domesticated bovid

The yak, also known as the Tartary ox, grunting ox, or hairy cattle, is a species of long-haired domesticated cattle found throughout the Himalayan region of Gilgit-Baltistan, Nepal, Sikkim (India), the Tibetan Plateau, (China), Tajikistan and as far north as Mongolia and Siberia. It is descended from the wild yak.

<span class="mw-page-title-main">Heck cattle</span> German breed of cattle

The Heck or Munich-Berlin is a German breed or type of domestic cattle. It was bred in the 1920s by Heinz and Lutz Heck in an attempt to breed back the extinct aurochs. Controversy revolves around methodology and success of the programme. There are considerable differences between Heck cattle and the aurochs in build, height, and body proportions. Furthermore, there are other cattle breeds which resemble their wild ancestors at least as much as Heck cattle.

<span class="mw-page-title-main">Gayal</span> Species of domestic cattle

The gayal, also known as the Drung ox or mithun, is a large domestic cattle distributed in Northeast India, Bangladesh, Myanmar and in Yunnan, China.

<span class="mw-page-title-main">Kouprey</span> A little-known, forest-dwelling, wild bovine species from Southeast Asia

The kouprey, also known as the forest ox and grey ox, is a possibly extinct species of forest-dwelling wild bovine native to Southeast Asia. It was first scientifically described in 1937. The name kouprey is derived from the Khmer language and means "forest ox".

<span class="mw-page-title-main">Banteng</span> Species of wild bovine discovered in Southeast Asia

The banteng, also known as tembadau, is a species of wild bovine found in Southeast Asia.

<span class="mw-page-title-main">Bovid hybrid</span> Crossbreeds in the bovid family

A bovid hybrid is the hybrid offspring of members of two different species of the bovid family. There are 143 extant species of bovid, and the widespread domestication of several species has led to an interest in hybridisation for the purpose of encouraging traits useful to humans, and to preserve declining populations. Bovid hybrids may occur naturally through undirected interbreeding, traditional pastoral practices, or may be the result of modern interventions, sometimes bringing together species from different parts of the world.

<span class="mw-page-title-main">Bovini</span> Tribe of cattle

The tribe Bovini or wild cattle are medium to massive bovines that are native to Eurasia, North America, and Africa. These include the enigmatic, antelope-like saola, the African and Asiatic buffalos, and a clade that consists of bison and the wild cattle of the genus Bos. Not only are they the largest members of the subfamily Bovinae, they are the largest species of their family Bovidae. The largest species is the gaur, weighing up to 1,500 kg (3,300 lb).

<span class="mw-page-title-main">Sanga cattle</span> Breed of cattle

Sanga cattle is the collective name for indigenous cattle of some regions in Africa. They are sometimes identified as a subspecies with the scientific name Bos taurus africanus. Their history of domestication and their origins in relation to taurine cattle, zebu cattle (indicine), and native African varieties of the ancestral aurochs are a matter of debate. "African taurine", "sanga", "zenga", "sheko", "African indicine" are all sub-groups of Sanga cattle.

<span class="mw-page-title-main">Indian aurochs</span> Subspecies of mammals

The Indian aurochs is an extinct subspecies of aurochs that inhabited West Asia and the Indian subcontinent from the Late Pleistocene until its eventual extinction during the South Asian Stone Age. With no remains younger than 3,800 YBP ever recovered, the Indian aurochs was the first of the three aurochs subspecies to become extinct; the Eurasian aurochs and the North African aurochs persevered longer, with the latter bring known by the Roman Empire, and the former surviving until the mid-17th century in Central Europe.

<span class="mw-page-title-main">Cattle</span> Large, domesticated, cloven-hooved herbivores

Cattle are large, domesticated, bovid ungulates widely kept as livestock. They are prominent modern members of the subfamily Bovinae and the most widespread species of the genus Bos. Mature female cattle are called cows and mature male cattle are bulls. Young female cattle are called heifers, young male cattle are oxen or bullocks, and castrated male cattle are known as steers.

<span class="mw-page-title-main">Wild yak</span> Species of mammal

The wild yak is a large, wild bovine native to the Himalayas. It is the ancestor of the domestic yak.

<span class="mw-page-title-main">Uruz Project</span> Project having the goal of breeding back the extinct cattle species of aurochs

The Uruz Project had the goal of breeding back the extinct aurochs. Uruz is the old Germanic word for aurochs. The Uruz Project was initiated in 2013 by the True Nature Foundation and presented at TEDx DeExtinction, a day-long conference organised by the Long Now Foundation with the support of TED and in partnership with National Geographic Society, to showcase the prospects of bringing extinct species back to life. The de-extinction movement itself is spearheaded by the Long Now Foundation.

<span class="mw-page-title-main">Milovice Nature Reserve</span>

Milovice Nature Reserve is a nature reserve next to the towns of Milovice and Benátky nad Jizerou in Nymburk District, Central Bohemian Region, Czech Republic. Established in 2015, the area is administered by the Česká krajina o.p.s. organization, as a part of Evropsky významná lokalita Milovice-Mladá CZ0214006 protected area, part of the European Union project Natura 2000. This reserve is a pioneering project of cooperation between several scientific bodies and draws support from many organizations and private sponsors.

<span class="mw-page-title-main">Bovina (subtribe)</span> Subtribe of cattle

Bovina is a subtribe of the Bovini tribe that generally includes the two living genera, Bison and Bos. However, this dichotomy has been challenged recently by molecular work that suggests that Bison should be regarded as a subgenus of Bos. Wild bovinans can be found naturally in North America and Eurasia.


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  13. "Bos bison Linnaeus, 1758".
  14. "Bos bonasus Linnaeus, 1758".
  15. 1 2, Genus - Bisons