• Local Time
  • Location: San Diego Zoo, California, United States
  • Source:
  • Info: Live streaming webcam with siamang apes and orangutans at the San Diego Zoo in California. The siamangs and orangutans have a glass-fronted habitat which has numerous trees, play structures, ropes, and sway poles.

More Info: Siamang apes are arboreal apes who live in the upper canopy of mountain and lowland forests in Malaysia and Sumatra and small parts of Thailand.

Siamangs are part of the gibbon family but the only member to have an inflating throat sac called a gular. When the gular is inflated with air, it gives a significant boost to vocal sounds which can be heard through the forest for up to 6.5kms. Their loud, booming calls are used to communicate and establish or defend their territory from other siamangs nearby. It is also a call between siamang pairs and they will make male-female duet calls in the morning which helps with cohesion in the family unit.

Siamangs rarely descend to the ground but when they do, they walk upright with their arms above their heads to help them balance. They sleep upright in the tree branches without building nests or tree platforms like other apes. Just like other gibbons they have tough, horny pads on their rear. These are known as ischial callosities and help the siamangs sit more comfortably on branches.

A siamang family will rotate between a few trees for night time sleeping. They never seem to sleep in the same one on consecutive nights. In the tree canopies, siamangs leap with confidence across formidable gaps between branches, launching themselves 30-50 feet, using their hands as hooks. This mode of locomotion is called brachiation.

Siamangs are omnivores. They forage for food in the forests during the day with most of their diet being made up of leaves and fruit. They also eat flowers, tree bark, plant shoots and seeds, as well as some protein in the form of bird eggs, spiders, small birds and insects.