White-handed Gibbon

White-handed Gibbon facts at a glance

How big is a white-handed gibbon?

An adult white-handed gibbon measures 90 cm long — about 52% of the height of an average adult person (1.73 m) — and weighs around 7.0 kg, about 10% of an average adult’s body weight (70 kg).

What is a group of white-handed gibbons called?

Explore more animal collective nouns and baby animal names .

Life in the canopy

White-handed gibbons spend almost their entire lives high in the rainforest canopy, rarely coming down to the ground. Their long arms, hook-like hands, and lightweight bodies of just 5 to 7 kg make them supremely agile among the branches. They are not monkeys but small apes, lacking a tail and instead relying on balance and their powerful shoulders to move. Their fur ranges from cream to dark brown, but the hands and feet are always pale, giving the species its name.

Brachiation: swinging through the trees

Gibbons are the fastest and most acrobatic of the tree-swinging apes, moving by a hand-over-hand technique called brachiation. Swinging beneath the branches, a white-handed gibbon can travel at up to 56 km/h and clear gaps of several metres in a single leap. Its ball-and-socket wrist joint lets the hand rotate freely, so momentum carries it smoothly from one hold to the next. This graceful, gravity-defying travel is far more efficient than climbing for an animal living in the treetops.

Singing duets

White-handed gibbons are among the most vocal of all apes, and mated pairs perform elaborate morning duets that ring through the forest. The female typically leads with a rising, whooping call known as the great call, while the male adds his own phrases. These songs advertise the pair's bond and warn rival gibbons away from their territory. A duet can carry for over a kilometre through dense rainforest, letting neighbours locate one another without meeting.

Diet and daily routine

Gibbons are mainly frugivores, favouring ripe fruit and supplementing it with young leaves, flowers, and the occasional insect. They forage by day, moving through a familiar home range and often returning to favourite fruiting trees. Because they seek out ripe fruit scattered across the canopy, they range widely each day in search of the best food. In the cool of midday they rest high in the branches before feeding again in the afternoon.

Family life

White-handed gibbons live in small family groups built around a bonded adult pair and their offspring. Both parents help defend the territory, and young gibbons stay with the family for several years before leaving to find mates of their own. A single infant is born after a long gestation and clings to its mother as she swings through the canopy. In the wild these apes can live 25 to 30 years, growing slowly and investing heavily in each youngster.

Why it is endangered

The white-handed gibbon is listed as Endangered by the IUCN, and its numbers are falling. The greatest threat is the loss of tropical rainforest to logging, agriculture, and palm-oil plantations, which fragments the continuous canopy these apes depend on. Gibbons are also captured for the illegal pet trade, with infants often taken after their mothers are killed. Protecting large, connected areas of intact rainforest is essential to their survival.

Did you know? White-handed Gibbon facts

• White-handed gibbons are acrobatic apes that brachiate through Southeast Asian rainforests.
• Gibbons are apes without tails, with longer arms and more complex pair bonding.
• Most gibbon species are threatened by deforestation and pet trade.
• Conservation: Endangered.

Diet & feeding

White-handed Gibbon feeds primarily as a fruit, leaves, insects.

Adaptations

• Gibbons swing hand-over-hand at speeds that cover 3 metres per second.
• Mated pairs sing coordinated morning duets audible over a kilometre away.

Behaviour & ecology

• Gibbons swing hand-over-hand at speeds that cover 3 metres per second.
• Mated pairs sing coordinated morning duets audible over a kilometre away.

Communication

• White-handed Gibbon uses scent, posture, and vocal signals to mark territory and coordinate social behaviour.
• Communication intensity often peaks during breeding seasons and territorial disputes.

Habitat & range

Tropical rainforests of Southeast Asia

Ecological role

White-handed Gibbon plays a recognised ecological role in tropical rainforests of southeast asia.

Conservation status of the White-handed Gibbon

Sources & references

This guide is compiled and reviewed against established zoological and conservation references. Key sources for the White-handed Gibbon:

• IUCN Red List of Threatened Species

  Conservation status (Endangered) reflects the IUCN Red List category for Hylobates lar, most recently assessed in 2020.

• iNaturalist — observations & photos

  Search citizen-science observations and community IDs for Hylobates lar. Useful for range checks and recent sightings — not a substitute for formal Red List status.

• GBIF — occurrence data

  Global Biodiversity Information Facility species search for Hylobates lar. Explore published occurrence records used in range research.

• IUCN Red List — Hylobates lar.

  Conservation status (Endangered) and population trends.

• Animal Diversity Web — Hylobates lar. University of Michigan Museum of Zoology.

  Life history, morphology, and range.

• Global Animal Guide editorial standards

  How we research, source, review, and update every guide for accuracy.