Siamang

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Description

Siamangs are arboreal, or tree dwelling, lesser apes that have no tail – a trait shared by all apes. They are the largest, darkest, and noisiest of the 9 gibbon species. They have long arms that are used to swing, or brachiate, through the trees in order to accommodate their arboreal lifestyle. Despite lacking a tail, siamang have a great sense of balance. They can be seen walking on their hind legs along branches high above the ground. These apes also have large throat sacs that inflate, producing different vocal tones.

Range & Habitat

This ape species can be found on the island of Sumatra, Malaysia, and Thailand in rainforests, monsoon forests, and mountain forests.

Behavior

Siamangs live in small family groups composed of a monogamous adult pair and their offspring. This species is highly territorial and will defend their territory with daily singing rituals. Their booming calls can be heard up to 2 miles away through the forest.

Diet

More than half of the siamang’s diet consists of fruit. However, they have also been known to eat bark, flowers, small birds (or their eggs), spiders, and insects.

Conservation

The major threat to siamang populations is habitat loss. More than 75% of siamang forests have been cut down primarily for agriculture to produce palm oil. Reducing your consumption of products or foods containing non-sustainable palm oil is a great way to help natural populations of this species.