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Orangutan

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This article is about the primate. For the chess opening, see Sokolsky Opening.

Orangutans[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
Primates
Family:
Hominidae
Subfamily:
Ponginae

Elliot, 1912
Genus:
Pongo

Type species
Simia pygmaeus
Linnaeus, 1760
Species

Pongo pygmaeus
Pongo abelii

Orangutan distribution

The orangutans are two species of great apes with long arms and reddish, sometimes brown, hair native to Indonesia and Malaysia . They are the only extant species in the genus Pongo and the subfamily Ponginae, although that subfamily also includes the extinct Gigantopithecus and Sivapithecus genera. The orangutan is an official state animal of Sabah in Malaysia. Their name derives from the Malay and Indonesian phrase orang hutan meaning "person of the forest".[2][3]

Orangutans are the most arboreal of the great apes, spending nearly all of their time in the trees, making a new nest in the trees every night. They are only found in rainforests on the islands of Borneo and Sumatra. Adult males are about 4.5 ft (1.4 m) tall and up to 180 lb (82 kg) in weight.


Conservation status

The Borneo species of orangutans are highly endangered and the Sumatran species is critically endangered according to the IUCN Red List of Mammals and both are listed on Appendix I of CITES. The Borneo population is about 50,000 in the wild, while the Sumatran species is 7,000 to 7500 individuals. Orangutan habitat destruction due to logging, mining and forest fires has been increasing rapidly in the last decade. Much of this activity is illegal, occurring in national parks that are officially off limits to loggers, miners and plantation development. There is also a major problem with the illegal trapping of baby orangutans for sale into the pet trade; the trappers usually kill the mother to steal the baby. Major conservation centres in Indonesia include those at Tanjung Puting in Central Kalimantan, Kutai in East Kalimantan, Gunung Palung in West Kalimantan, and Gunung Leuser in Aceh and North Sumatera. In Malaysia, conservation areas include Semenggok in Sarawak, and Sepilok near Sandakan in Sabah.

Behaviour

Like the other great apes, orangutans are remarkably intelligent. Although tool use among chimpanzees was documented by Jane Goodall in the 1960s, it wasn't until the mid-1990s that one population of orangutans was found to use feeding tools regularly. A 2003 paper in the journal Science described the evidence for distinct orangutan cultures.[4]

Although orangutans are generally passive, aggression toward other orangutans is very common; they are solitary animals and can be fiercely territorial. Immature males will try to mate with any female, and may succeed in forcibly copulating with her if she is also immature and not strong enough to fend him off. Mature females easily fend off their immature suitors, preferring to mate with a mature male. Wild orangutans are known to visit human-run facilities for orphaned young orangutans released from illegal captivity, interacting with the orphans and probably helping them adapt in their return to living in the wild.

Terminology

The word orangutan (also written orang-utan, orang utan and orangutang) is derived from the Malay and Indonesian words orang meaning "person" and hutan meaning "jungle", or "man of the forest". Orang Hutan is the common term in these two national languages, although local peoples may also refer to them by local languages. Maias and mawas are also used in Malay, but it is unclear if those words refer only to orangutans, or to all apes in general.

The word was first attested in the form orang-outang, and variants with -ng instead of -n as in the Malay original are found in many languages. This spelling (and pronunciation) has remained in use in English up to the present, but has come to be regarded as incorrect by some, e.g. [1]. However, dictionaries such as the American Heritage Dictionary regard forms with -ng as acceptable variants.

The name of the genus, Pongo, comes from a 16th century account by Andrew Battell, an English sailor held prisoner by the Portuguese in "Angola" (probably somewhere near the mouth of the Congo River), which describes two anthropoid "monsters" named Pongo and Engeco. It is now believed that he was describing gorillas, but in the late 18th century it was believed that all great apes were orangutans; hence Lacépède's use of Pongo for the genus.[5]

Species

The populations on the two isolated islands were classified as subspecies until recently, when they were elevated to full specific level, and the three distinct populations on Borneo were elevated to subspecies.

See also

Female Orangutan and baby in Perth Zoo

References

  1. ^ a b Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 183–184. ISBN 0-801-88221-4. OCLC 62265494.
  2. ^ "Orangutan Foundation International: All About Orangutans". Retrieved 2006-08-01.
  3. ^ "Tracking Orangutans from the Sky". PLoS Biol. 3 (1): e22. 2004. doi:10.1371/journal.pbio.0030022.
  4. ^ "Roads through rainforest threaten our cultured cousins". 2003. {{cite web}}: |first= missing |last= (help); Missing pipe in: |first= (help)
  5. ^ Groves, Colin (2002). "A history of gorilla taxonomy" (PDF). Gorilla Biology: A Multidisciplinary Perspective, Andrea B. Taylor & Michele L. Goldsmith (editors). Cambridge University Press: pp. 15–34. {{cite journal}}: |pages= has extra text (help)
Wikimedia Commons has media related to Pongo.
Wikispecies has information related to Ponginae.
Wikispecies has information related to Pongo.

General Information

Orangutan protection

  • Orangutan Foundation International non-profit organization dedicated to "support the conservation and understanding of the orangutan and its rain forest habitat while caring for ex-captive individuals as they make their way back to the forest."
  • The Orangutan Network - Documents Orangutan cultural variation / traditions and also conservation efforts
  • Orang Utan Republik Education Initiative non-profit organization whose mission is to secure the future of the orangutan through programs of education and outreach in Indonesia.

In Borneo

In Sumatra

Photos and video

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