Peninsular Malaysia, Sumatra, Thailand.
Fruits, leaves and buds from trees, flowers, insects and birds eggs.
Habitat: Tropical rainforest.
Weight: males 12.7kg max, females 11.5kg max
Gestation: 189-239 days, 1-2 young
Social structure: Families with 2-6 members. Monogamous and highly territorial. Couple mark their territory vocally by singing a duet.
Estimated population in the wild: ~22,390
IUCN Status: Endangered
Threats: Habitat loss and fragmentation of their habitat due to logging, road development, conversion to agriculture, and Illegal pet trade.
Did you know that:
- Unlike other apes, they usually walk on two legs when on the ground.
- Their extra-long arms help them swing from branch to branch, leaping distances up to 9m.
- They are monogamous and pairs usually stay together for life.
- Siamangs are syndactylous, having their 2nd and 3rd toes fused by a thin webbing of skin.
- When fully inflated, the throat sac is comparable in size to the animal's head.