Animal Weight

How much does a Siamang weight?

It is hard to guess what a Siamang weights. But we have the answer:

An adult Siamang (Symphalangus syndactylus) on average weights 10.84 kg (23.9 lbs).

The Siamang is from the family Hylobatidae (genus: Symphalangus). It is usually born with about 517 grams (1.14 lbs). They can live for up to 38 years. When reaching adult age, they grow up to 82.4 cm (2′ 9″). Usually, Siamangs have 1 babies per litter.

As a reference: An average human weights in at 62 kg (137 lbs) and reaches an average size of 1.65m (5′ 5″). Humans spend 280 days (40 weeks) in the womb of their mother and reach around 75 years of age.

The average adult weight of a Siamang is 10.84 kg (23.9 lbs)

The siamang (Symphalangus syndactylus) is an arboreal black-furred gibbon native to the forests of Indonesia, Malaysia and Thailand. The largest of the gibbons, the siamang can be twice the size of other gibbons, reaching 1 m in height, and weighing up to 14 kg. The siamang is the only species in the genus Symphalangus.Two features distinguish the siamang from other gibbons. The first is that two digits on each foot—the second and third toes—are partially joined by a membrane—hence the name “syndactylus”, from the Ancient Greek sun-, “united” + daktulos, “finger”. The second is the large gular sac (found in both males and females of the species), which is a throat pouch which can be inflated to the size of the siamang’s head, allowing it to make loud, resonating calls or songs.Two subspecies of the siamang may exist. If so, they are the nominate Sumatran siamang (S. s. syndactylus) and the Malaysian siamang (S. s. continentis, in peninsular Malaysia). Otherwise, the Malaysian individuals are only a population. The siamang occurs sympatrically with other gibbons; its two ranges are entirely within the combined ranges of the agile gibbon and the lar gibbon.The siamang can live to around 40 years in captivity.While the illegal pet trade takes a toll on wild populations, the principal threat to the siamang is habitat loss in both Indonesia and Malaysia. The palm oil production industry is clearing large swaths of forest, reducing the habitat of the siamang, along with that of other species, such as the Sumatran tiger.

Animals of the same family as a Siamang

We found other animals of the Hylobatidae family:

Animals with the same weight as a Siamang

As a comparison, here are some other animals that weight as much as the Symphalangus syndactylus:

Animals with the same size as a Siamang

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Siamang:

Animals with the same litter size as a Siamang

Here is a list of animals that have the same number of babies per litter (1) as a Siamang:

Animals with the same life expectancy as a Siamang

Completely different animals, but becoming as old as a Siamang: