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small apeape,
any primate of the superfamily Hominoidea, which includes humans; this article, however, focuses on the nonhuman apes. The small apes, the gibbons and the siamang, and the orangutans, which belong to the great apes, are found in SE Asia.
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, family Hylobatidae, found in the forests of SE Asia. The gibbons are known as the small, or lesser, apes; they are the most highly adapted of the apes to arboreal life. They are highly endangered because of habitat destruction.

Most gibbons are about 3 ft (90 cm) tall and weigh about 15 lb (6.4 kg). Their arms are extremely long in proportion to their body length, and they swing through the trees with great speed and agility, clearing gaps up to 20 ft (6 m) wide. On the ground they walk on two feet, holding their arms up awkwardly; they can also run on all fours.

Members of most gibbon species have black faces surrounded by a white ruff; their fur ranges in color from black to buff. Some species, e.g., the lar, or white-handed, gibbon, have sexual dimorphism in coloration. Like Old World monkeys and unlike other apes, gibbons have callosities on their buttocks.

Gibbons live in permanent families consisting of a male, a female, and their young; families occupy definite territories. They feed on fruits and other plant matter as well as insects and other small animals. Gibbons have powerful voices and at times engage in loud howling, which is answered by other gibbons in the vicinity.

The largest gibbon is the siamang, Symphalangus syndactylus. Deep black, with a reddish brown face, the siamang may weigh up to 25 lb (11.3 kg). Siamangs are further distinguished by the presence in both sexes of a large vocal sac on the throat; this sac is inflated before the animal howls and probably functions to magnify the sound. Such a sac is also found in the male black crested gibbon (Nomascus concolor). Siamangs are found in the high mountain forests of Sumatra and the Malay Peninsula.

Gibbons are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
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, subphylum Vertebrata, class Mammalia, order Primates, family Hylobatidae.


(vertebrate zoology)
The common name for seven species of large, tailless primates belonging to the genus Hylobates ; the face and ears are hairless, and the arms are longer than the legs.


any small agile arboreal anthropoid ape of the genus Hylobates, inhabiting forests in S Asia


1. Edward. 1737--94, English historian; author of The History of the Decline and Fall of the Roman Empire (1776--88), controversial in its historical criticism of Christianity
2. Lewis Grassic , real name James Leslie Mitchell. 1901--35, Scottish writer: best known for his trilogy of novels Scots Quair (1932--34)
References in periodicals archive ?
Gibbon who stayed at a hotel her grandmother owns in Jamaica looked for bartending work so she could save enough money to attend a film school in Europe.
After a few minutes he went downstairs to the toilet and as he returned upstairs he could hear Gibbon and Mr Fletcher arguing.
Spanning nearly an acre, it's ten times larger than the primates' previous enclosure and is specially designed to replicate the natural forest environment of gibbons as well as provide an exciting new experience for visitors.
This mulched floor will act like a natural soil and as it biodegrades it will generate high humidity levels which are beneficial for the gibbons.
The researchers analyzed the genome of a female northern white-cheeked gibbon named Asia and sequenced the genomes of eight other individuals.
She looked out, heard moaning and saw Gibbon - who said later that he had been to a party - viciously kicking a man and apparently full of rage.
RvG takes the position, after his analyses of the classical books and paintings on the gibbon, that the gibbon is depicted as taking a moral leadership position, metaphorically comparable to that of the recluse (yinshi), among the monkey clans and other animals in its forest canopy habitat in the remote mountainous areas.
Brule, who goes by the nickname "Chanee" (gibbon in Thai), has been working since he was 18 to protect gibbons in Kalimantan, the Indonesian section of Borneo where deforestation has decimated the ranks of the tree-dwelling primates.
Washington, August 23 ( ANI ): Researchers have discovered that singing gibbons use the same vocal techniques as professional soprano singers.
Now after months of battling with Northumbria Police, Mr Gibbon has won his battle to get the name of his attacker and now plans to launch a civil case against him.
Neither the visitor or the gibbon were harmed in the incident.
GIBBONS have regional accents just like humans, scientists have found.