Bornean Gibbon

Kingdom Order Family Genus Species
Animalia Primates Hylobatidae Hylobates Hylobates muelleri
Borneo gibbon
IUCN Status: Endangered
  • Common Names: Borneo Gibbon, Müller’s Gibbon, Gary Gibbon
  • Taxonomy Classification Year: 1841
  • Monkey Size: 44 to 64 cm (17 to 25 in)
  • Skin Color(s): Light brown
  • Habitat: Forest, rainforest
  • Diet: Herbivorous
  • Native Countries: Indonesia, Malaysia, Brunei

Borneo gibbon Distribution

Bornean Gibbon Characteristics

Bornean Gibbon

Also known as the Müller’s or gray gibbon, the Bornean gibbon[1] is native to the Bornean Island, which is divided between the nations of Brunei, Malaysia, and Indonesia.

gray gibbon

  • They have light brown fur that fades to black on the face, chest, and inner arms, with a white border around the face.
  • They have padded buttocks and pronounced canines, and the base of the thumb unusually starts at the wrist rather than the typical palm of the hand, enabling them a wide range of motion.
  • However, this limits their ability to grasp small objects. One of their most distinctive features is their incredibly long arms, especially their long ulna and forearms’ radial bones.
  • This trait, along with many other minor skeletal adaptations, tailors the species to its method of locomotion: brachiation.

Müller's Gibbon

What Do Borneo gibbons Eat?

What Do Bornean Gibbons Eat?

The Borneo gibbon diet includes Jointfir (Gnetum), Breadfruit (Artocarpus) and Mangoes (Mangifera)[¶].

Bornean Gibbon Facts

Hylobates Muelleri

  • ​Although every Borneo gibbon song sounds similar to a human, they are very individual. Computer analysis can identify individual female species from their songs with an accuracy of 95.7%.
  • These primates are very territorial. Their range averages 34 ha (84 acres), and around 75% of this area is actively defended.
  • Usually, Borneo gibbons live in groups of 3 or 4, a pair and their young.
  • They are active between 8 and 10 hours a day. They are diurnal, waking up just before sunrise and falling asleep at night before sunset.
  • Borneo gibbons spend little time socializing: they spend only around 5 percent of their day grooming and socializing, which is considerably low for a primate species.

Suggested Reading: All Types of Apes

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BioExplorer.net. (2022, December 07). Bornean Gibbon. Bio Explorer. https://www.bioexplorer.net/animals/mammals/apes/bornean-gibbon/.
BioExplorer.net. "Bornean Gibbon" Bio Explorer, 07 December 2022, https://www.bioexplorer.net/animals/mammals/apes/bornean-gibbon/.
BioExplorer.net. "Bornean Gibbon" Bio Explorer, December 07 2022. https://www.bioexplorer.net/animals/mammals/apes/bornean-gibbon/.
Key References
  • [1]“Bornean Gibbon-Encyclopedia of Life”. Accessed October 18, 2022. Link.

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