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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Subordo: Cynodontia
Infraordo: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Cladus: Euungulata
Ordo: Artiodactyla
Cladus: Artiofabula
Subordo: Suina

Familia: Suidae
Genus: Babyrousa
Species (4): B. babyrussa – B. celebensis – B. togeanensis – †B. bolabatuensis


Babyrousa Perry, 1811

Primary references

Perry 1811: Arcana, sign. c1.

selected references

Groves, C.P. 1980: Notes on the systematics of Babyrousa (Artiodactyla, Suidae). Zoologische mededelingen, 55(3): 29–46. abstract and pdf
Meijaard, E.; Groves, C. 2002: Proposal for taxonomic changes within the genus Babyrousa. Asian wild pig news, 2(1): 9–10. [not seen]
Meijaard, E.; Groves, C. 2002: Upgrading three subspecies of babirusa (Babyrousa sp.) to full species level. Asian wild pig news, 2(2): 33–39. PDF


Babyrousa in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
Nomenclator Zoologicus

Vernacular names
Deutsch: Hirscheber
svenska: Hirvsika

The Babirusas, whose name directly translates to Pig Deer in Malaysian Malay and English (Indonesian: babi rusa[2]), are a genus, Babyrousa, in the swine family found in the Indonesian islands of Sulawesi, Togian, Sula and Buru.[3] All members of this genus were considered part of a single species until 2002, the babirusa, B. babyrussa, but following that was split into several species. This scientific name is restricted to the Buru babirusa from Buru and Sula, whereas the best-known species, the north Sulawesi babirusa, is named B. celebensis.[4] The remarkable "prehistoric" appearance of these mammals is largely due to the prominent upwards incurving canine tusks of the males, which actually pierce the flesh in the snout.[5] All species of babirusa are listed as threatened by the International Union for Conservation of Nature (IUCN).


The first part of the name "Babi" partially originates of the phrase "Barba Rossa" (Red Bearded) and has been adopted into Malaysian Malay and Malaysian English. "Barba's" phrasing and origin could certainly trace back to the extensive presence of interactions with the Spanish and Portuguese, who similarly named Barbados.[6] The second part of the word "Rusa" meaning deer is Malay, is phonetically similar to "Rosa," however it originates from the Proto-Austronesian languages itself.[7]

The genus is monotypic within the subfamily Babyrousinae, or alternatively considered to form a tribe, Babyrousini, of the subfamily Suinae. To date, only one fossil skull has been found to suggest a larger ancestor.[8]

All members of the genus were considered part of a single species, the babirusa or pig-deer, B. babyrussa. They were split into several species, this scientific name is restricted to the Buru babirusa from Buru and the Sula Islands, whereas the best-known species, the north Sulawesi babirusa, is named B. celebensis.[4] The split, which uses the phylogenetic species concept, is based on differences in size, amount of hair on body and tail-tuft, and measurements of the skull and teeth.[4]

Buru babirusa (B. babyrussa), also known as the hairy or golden babirusa
Bola Batu babirusa (B. bolabatuensis), proposed species
North Sulawesi babirusa (B. celebensis), also known as the Sulawesi babirusa
Togian babirusa (B. togeanensis)

B. babyrussa beruensis was described as an extinct, Pleistocene subspecies from southwestern Sulawesi before babirusas were split into multiple species.
Skull of a male North Sulawesi babirusa (37 cm long).

Babirusa are notable for the long upper canines in the males. The upper canines of male babirusa emerge vertically from the alveolar process, penetrating through the skin and curving backward over the front of the face and towards the forehead.[9][10] The lower canines also grow upwards. The canines of the female are either reduced or absent.[9] The structure of the male's canines vary by species. In the golden babirusa, the upper canines are short and slender with the alveolar rotated forward to allow the lower canines to cross the lateral view.[9] The Togian babirusa also has the same characteristics and the upper canines always converge. The North Sulawesi babirusa has long and thick upper canines with a vertically implanted alveolar. This caused the upper canines to emerge vertically and not cross with the lower canines.[11] Babirusa also vary by species in other characteristics. The golden babirusa has a long, thick pelage that is white, creamy gold, black or gold overall and black at the rump.[9] The pelage of the Togian babirusa is also long but not as that of the golden babirusa. The Togian babirusa has a tawny, brown or black pelage that is darker on the upper parts than in the lower parts.[9] The North Sulawesi babirusa has very short hair and appears bald. The female babirusa has only one pair of teats.[12]
Biology and ecology
Two babirusas fighting in Indonesia.
North Sulawesi babirusa skeleton (Museum of Osteology)

Babirusa are native to Sulawesi, some of the Togian Islands, the Sula Islands and Buru.[9] In Sulawesi, they range from the northern peninsula to the south and south east provinces. Although babirusas are present on both Sulawesi and Sula, they are not found on the large islands between the two, the Banggai Archipelago. It has been hypothesized that the unusual distribution is due to their being transported by humans as gifts bestowed by native royalty.[13] The preferred habitat of babirusa are tropical rainforests along river banks.[9] It appears that they have been confined to the higher grounds in the interior despite occurring in lowland areas near coasts in the past.[9] They are also active during the daytime. Like all pig species, babirusa have an omnivorous diet with an intestinal tract similar to that of the domestic pig.[14] The stomach diverticulum of a babirusa is enlarged which may indicate that it is a ruminant but evidence shows otherwise.[9] Because it does not have a rostral bone in the nose, a babirusa does not dig with its snout like other pigs do except in mud and swampy grounds. The diet of the babirusa includes leaves, roots, fruits and animal material. Apparently, the strong jaws of a babirusa are capable of easily cracking hard nuts.[9]

Male babirusa tend to live solitarily while adult females can be found in groups with young.[15] Groups of female and young babirusa may number up to 84 individuals, most of which contain no adult males. Males rarely travel in pairs or trios.[15] There are almost never more than three adult females in a group.[16] The tusks of the adult males are used in intraspecific fighting. The upper tusks are for defense while the lower tusks are offensive weapons.[17] If a male babirusa does not grind his tusks (achievable through regular activity), they can eventually keep growing so as to penetrate the individual's own skull.[18]

Female babirusa cycle lengths are between 28 and 42 days and estrus last 2–3 days.[9] The litter size for a babirusa is usually one or two piglets.[9]
Relationship with humans

In Indonesia, the striking appearance of the babirusa has inspired demonic masks.[19]

The Balinese Hindu-era Court of Justice pavilion and the "floating pavilion" of Klungkung palace ruins are notable for painted babirusa raksasa (grotesques) on the ceilings.[13]

Prehistoric paintings of babirusa found in caves on the island of Sulawesi in Indonesia have been dated back at least 35,400 years (to the ice age Pleistocene epoch). Adam Brumm, who co-authored the 2014 study dating the paintings, said "The paintings of the wild animals are most fascinating because it is clear they were of particular interest to the artists themselves."[20]
Conservation status

Babirusas are protected in Indonesia and killing them is illegal in most cases. However, poaching remains a significant threat to the babirusa. Additionally, commercial logging operations threaten the babirusa by habitat loss, and also reduce cover, making the babirusa more exposed to poachers.[19] All extant species of babirusa are listed as vulnerable or endangered by the IUCN.[21]

Wilson, D.E.; Reeder, D.M., eds. (2005). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. ISBN 978-0-8018-8221-0. OCLC 62265494.
Skeat, Walter W. (1901). A Concise Etymological Dictionary of the English Language. Clarendon Press. p. 35. Retrieved 17 July 2012.
Grubb, P. (2005). "Order Artiodactyla". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 637. ISBN 978-0-8018-8221-0. OCLC 62265494.
Meijaard, E., & C. Groves. (2002). Proposal for taxonomic changes within the genus Babyrousa. Asian Wild Pig News 2 (1), 9-10.
"Babyrousa babyrussa". Animal Diversity Web. Retrieved 2 December 2015.
"'Barbados'". World Factbook. Archived from the original on 23 January 2021. {{cite web}}: |first1= missing |last1= (help); |first2= missing |last2= (help); |first3= missing |last3= (help); |first4= missing |last4= (help); |first5= missing |last5= (help)
Ian Metcalfe, Faunal and floral migrations and evolution in SE Asia-AustralasiaCRC Press, 2001. ISBN 978-90-5809-349-3. 416 pages: pp338.
MacDonald, A. A. 1993. The Babirusa (Babyrousa babyrussa). In: W. L. R. Oliver (ed.), Pigs, Peccaries, and Hippos: Status Survey and Conservation Action Plan, IUCN, Gland, Switzerland.
Nasoori, A (2020). "Tusks, the extra-oral teeth". Archives of Oral Biology. 117: 104835. doi:10.1016/j.archoralbio.2020.104835. PMID 32668361. S2CID 220585014.
Groves, C. 1980. Notes on the systematics of Babyrousa (Artiodactyla, Suidae). Zoologische Mededelingen 55:29–46.
BBC (2010). Babirusa. Downloaded 18 April 2010.
Umberto Albarella, Keith Dobney, Anton Ervynck: 2007. Pigs and humans: 10,000 years of interaction Oxford University Press 2007. ISBN 978-0-19-920704-6. 454 pages: pp20.
Langer, P. (1988): The Mammalian Herbivore Stomach – Comparative Anatomy, Function and Evolution. Gustav Fischer, Stuttgart and New York: 136-161.
Patry, Maurice; Leus, Kristin; Macdonald, Alastair A (1995) "Group Structure and Behaviour of Babirusa (Babyrousa babyrussa) in Northern Sulawesi", Australian Journal of Zoology, 43:643-655.
Patry M , Leus K Macdonald AA (1995) Group structure and behaviour of babirusa (Babyrousa babyrussa) in northern Sulawesi. Australian Journal of Zoology 43, 643-655.
J. MacKinnon, (1981) "The structure and function of the tusks of babirusa", Mammal Review, 11(1):37-40.
"Babirusas can get impaled by their own teeth: that most sought-after of objects does exist! (babirusas, part VIII)". Tetrapod Zoology.
"Sulawesi babirusa (Babyrousa celebensis)". ARKive. Archived from the original on 11 April 2012. Retrieved 17 July 2012.
Sample, Ian (9 October 2014). "35,000-year-old Indonesian cave paintings suggest art came out of Africa". The Guardian. Retrieved 14 November 2015. ""The paintings of the wild animals are most fascinating because it is clear they were of particular interest to the artists themselves", said Brumm."
"IUCN Red List of Threatened Species Version 2010.1". 2010. Retrieved 18 April 2010.

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