Suina (also known as Suiformes) is a

suborder Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...

of omnivorous, non- ruminant artiodactyl mammals that includes the domestic pig and peccaries. A member of this

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English ter ...

is known as a suine. Suina includes the family

Suidae Suidae is a family of artiodactyl mammals which are commonly called pigs, hogs or swine. In addition to numerous fossil species, 18 extant species are currently recognized (or 19 counting domestic pigs and wild boars separately), classified in ...

, termed suids, known in English as pigs or swine, as well as the family Tayassuidae, termed tayassuids or peccaries. Suines are largely native to Africa, South America, and Southeast Asia, with the exception of the

wild boar The wild boar (''Sus scrofa''), also known as the wild swine, common wild pig, Eurasian wild pig, or simply wild pig, is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania. The species i ...

, which is additionally native to Europe and Asia and introduced to North America and Australasia, including widespread use in farming of the

domestic pig The pig (''Sus domesticus''), often called swine, hog, or domestic pig when distinguishing from other members of the genus '' Sus'', is an omnivorous, domesticated, even-toed, hoofed mammal. It is variously considered a subspecies of ''Su ...

subspecies. Suines range in size from the 55 cm (22 in) long

pygmy hog The pygmy hog (''Porcula salvania'') is the rarest species of pig in the world today, and is the only species in the genus ''Porcula''. It is also the smallest species of pig in the world, with its piglets being small enough to fit in one's pock ...

to the 210 cm (83 in) long giant forest hog, and are primarily found in forest, shrubland, and grassland

biome A biome () is a biogeographical unit consisting of a biological community that has formed in response to the physical environment in which they are found and a shared regional climate. Biomes may span more than one continent. Biome is a broader ...

s, though some can be found in deserts, wetlands, or coastal regions. Most species do not have population estimates, though approximately two billion domestic pigs are used in farming, while several species are considered endangered or critically endangered with populations as low as 100. One species, Heude's pig, is considered by the

International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

to have gone extinct in the 20th century.

Classification

Suina's placement within Artiodactyla can be represented in the following cladogram:(see e.g. Fig S10) The suborder Suina consists of 21 extant species in nine genera. These are split between the

family, containing 18 species belonging to 6 genera, and the Tayassuidae family, containing 3 species in 3 genera. This does not include

hybrid species Hybrid speciation is a form of speciation where hybridization between two different species leads to a new species, reproductively isolated from the parent species. Previously, reproductive isolation between two species and their parents was tho ...

such as

boar–pig hybrid Boar–pig hybrid is a hybridized offspring of a cross between the Eurasian wild boar (''Sus scrofa scrofa'') and any domestic pig (''Sus scrofa domesticus''). Feral hybrids exist throughout Eurasia, the Americas, Australia, and in other places ...

s or extinct prehistoric species. Additionally, one species, Heude's pig, went extinct in the 20th century. * Family

(Pigs) ** Genus '' Babyrousa'': four species ** Genus ''

Hylochoerus The giant forest hog (''Hylochoerus meinertzhageni''), the only member of its genus (''Hylochoerus''), is native to wooded habitats in Africa and is generally considered the largest wild member of the pig family, Suidae; however, a few subspeci ...

'': one species ** Genus ''

Phacochoerus ''Phacochoerus'' is a genus in the family Suidae, commonly known as warthogs (pronounced ''wart-hog''). They are pigs who live in open and semi-open habitats, even in quite arid regions, in sub-Saharan Africa. The two species were formerly cons ...

'': two species ** Genus ''

Porcula The pygmy hog (''Porcula salvania'') is the rarest species of pig in the world today, and is the only species in the genus ''Porcula''. It is also the smallest species of pig in the world, with its piglets being small enough to fit in one's pock ...

'': one species ** Genus '' Potamochoerus'': two species ** Genus '' Sus'': nine species * Family Tayassuidae (Peccaries) ** Genus '' Catagonus'': one species ** Genus '' Dicotyles'': one species ** Genus '' Tayassu'': one species

References

{{Authority control Taxa named by John Edward Gray Mammal suborders Artiofabula