How many baby Siamangs are in a litter?
A Siamang (Symphalangus syndactylus) usually gives birth to around 1 babies.
Each of those little ones spend around 230 days as a fetus before they are released into the wild. Upon birth, they weight 517 grams (1.14 lbs) and measure 1.7 cm (0′ 1″). They are a member of the Hylobatidae family (genus: Symphalangus). An adult Siamang grows up to a size of 82.4 cm (2′ 9″).
To have a reference: Humans obviously usually have a litter size of one ;). Their babies are in the womb of their mother for 280 days (40 weeks) and reach an average size of 1.65m (5′ 5″). They weight in at 62 kg (137 lbs), which is obviously highly individual, and reach an average age of 75 years.
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.
Other animals of the family Hylobatidae
Siamang is a member of the Hylobatidae, as are these animals:
- Lar gibbon with 1 babies per pregnancy
- Hoolock gibbon with 1 babies per pregnancy
- Hoolock gibbon with 1 babies per pregnancy
- Müeller’s gibbon with 1 babies per pregnancy
- Northern white-cheeked gibbon weighting around 7.32 kilograms (16.14 lbs)
- Pileated gibbon with 1 babies per pregnancy
- Siamang with 1 babies per pregnancy
- Agile gibbon with 1 babies per pregnancy
- Black crested gibbon with 1 babies per pregnancy
- Silvery gibbon with 1 babies per pregnancy
Animals that share a litter size with Siamang
Those animals also give birth to 1 babies at once:
- Flores woolly bat
- Painted ringtail possum
- Blyth’s vole
- Northern brushtail possum
- Acuminate horseshoe bat
- Crescent nail-tail wallaby
- California sea lion
- Père David’s deer
- Javan rhinoceros
- Whiskered bat
Animals that get as old as a Siamang
Other animals that usually reach the age of 38 years:
- Javan rhinoceros with 40 years
- Cuvier’s beaked whale with 36 years
- Common genet with 34 years
- Spotted hyena with 41.08 years
- Chacma baboon with 45 years
- Polar bear with 38.17 years
- Red-faced spider monkey with 37.75 years
- Black crested gibbon with 44.08 years
- Diana monkey with 37.25 years
- Black-and-white ruffed lemur with 32 years
Animals with the same weight as a Siamang
What other animals weight around 10.84 kg (23.9 lbs)?
- Black snub-nosed monkey usually reaching 11 kgs (24.25 lbs)
- Black-headed spider monkey usually reaching 9.07 kgs (20 lbs)
- Proboscis monkey usually reaching 12.28 kgs (27.07 lbs)
- Iberian lynx usually reaching 11.08 kgs (24.43 lbs)
- Pudú usually reaching 9.61 kgs (21.19 lbs)
- Dwarf musk deer usually reaching 12.39 kgs (27.32 lbs)
- Sharpe’s grysbok usually reaching 9.37 kgs (20.66 lbs)
- Binturong usually reaching 13 kgs (28.66 lbs)
- Capped langur usually reaching 11.21 kgs (24.71 lbs)
- African civet usually reaching 12.09 kgs (26.65 lbs)
Animals with the same size as a Siamang
Also reaching around 82.4 cm (2′ 9″) in size do these animals:
- Bay duiker gets as big as 84.9 cm (2′ 10″)
- Red-fronted gazelle gets as big as 88.5 cm (2′ 11″)
- Beira (antelope) gets as big as 77.9 cm (2′ 7″)
- Binturong gets as big as 78.7 cm (2′ 7″)
- Culpeo gets as big as 72.4 cm (2′ 5″)
- African civet gets as big as 79.2 cm (2′ 8″)
- Thomson’s gazelle gets as big as 88.5 cm (2′ 11″)
- Side-striped jackal gets as big as 74.7 cm (2′ 6″)
- Gray dorcopsis gets as big as 66.4 cm (2′ 3″)
- Dwarf musk deer gets as big as 90 cm (3′ 0″)