A Throaty Voice:The siamang boasts a throat sac that inflates to nearly the size of its head to amplify its call.
Latin name: Hylobates syndactylus Where: Gibbon Islands Height: 2.5 to 3.0 ft Weight: Up to 23 lbs Lifespan: 23 yrs Habitat: Tropical rainforest Diet: Primarily fruit and leaves, some invertebrates Risk Status: Species at Risk (IUCN—Endangered) a black and white image of a black and white image Range: Malaysia and Sumatra