How many baby Silvery gibbons are in a litter?
A Silvery gibbon (Hylobates moloch) usually gives birth to around 1 babies.
Each of those little ones spend around 241 days as a fetus before they are released into the wild. Upon birth, they weight 399 grams (0.88 lbs) and measure 8.5 cm (0′ 4″). They are a member of the Hylobatidae family (genus: Hylobates). An adult Silvery gibbon grows up to a size of 67.6 cm (2′ 3″).
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 silvery gibbon (Hylobates moloch) is a primate in the gibbon family Hylobatidae. It is endemic to the Indonesian island of Java, where it inhabits undisturbed rainforests up to an altitude of 2,450 m (8,040 ft). It is listed as Endangered on the IUCN Red List since 2008, as the wild population is estimated at comprising less than 2500 mature individuals.Its coat is bluish-grey in colour, with a dark grey or black cap. Like all gibbons, the silvery gibbon lacks an external tail, has dorsally placed scapulae, and reduced flexibility in its lumbar region. It has long, curved fingers and very long forelimbs relative to its hind limbs. On average, it reaches 8 kg (18 lb) in weight.It is diurnal and arboreal, climbing trees skilfully and brachiating through the forests. Brachiation is possible because of its mobile wrist joints, full rotation of the upper arm, and the ability to lock elbows in suspension. Its diet consists of fruits, leaves, and flowers.Every three years, on average, the female gives birth to a single young, after a gestation of seven months. The offspring is nursed for about 18 months and lives with the family group until it is fully mature at about eight to ten years old.
Other animals of the family Hylobatidae
Silvery gibbon is a member of the Hylobatidae, as are these animals:
- Black crested gibbon with 1 babies per pregnancy
- Siamang with 1 babies per pregnancy
- Lar gibbon with 1 babies per pregnancy
- Siamang with 1 babies per pregnancy
- Müeller’s gibbon with 1 babies per pregnancy
- Pileated gibbon with 1 babies per pregnancy
- Kloss’s gibbon with 1 babies per pregnancy
- Northern white-cheeked gibbon weighting around 7.32 kilograms (16.14 lbs)
- Hoolock gibbon with 1 babies per pregnancy
- Black crested gibbon with 1 babies per pregnancy
Animals that share a litter size with Silvery gibbon
Those animals also give birth to 1 babies at once:
- Bates’s pygmy antelope
- Western grey kangaroo
- Thomson’s gazelle
- East Caucasian tur
- Spotted-winged fruit bat
- Tropical vlei rat
- Tana River red colobus
- Sloth bear
- Schneider’s leaf-nosed bat
- Western red colobus
Animals with the same weight as a Silvery gibbon
What other animals weight around 5.87 kg (12.93 lbs)?
- Brown’s pademelon usually reaching 5.48 kgs (12.08 lbs)
- Mentawai langur usually reaching 6.45 kgs (14.22 lbs)
- Mexican agouti usually reaching 5 kgs (11.02 lbs)
- Tibetan sand fox usually reaching 5.54 kgs (12.21 lbs)
- Blue duiker usually reaching 4.86 kgs (10.71 lbs)
- White-thighed surili usually reaching 5.9 kgs (13.01 lbs)
- Kirk’s dik-dik usually reaching 4.8 kgs (10.58 lbs)
- Brown dorcopsis usually reaching 5.39 kgs (11.88 lbs)
- Neotropical otter usually reaching 6.55 kgs (14.44 lbs)
- Formosan rock macaque usually reaching 5.75 kgs (12.68 lbs)
Animals with the same size as a Silvery gibbon
Also reaching around 67.6 cm (2′ 3″) in size do these animals:
- White-tailed mongoose gets as big as 57.3 cm (1′ 11″)
- Linnaeus’s two-toed sloth gets as big as 69 cm (2′ 4″)
- Tonkin snub-nosed monkey gets as big as 56.9 cm (1′ 11″)
- Neotropical otter gets as big as 60.2 cm (2′ 0″)
- Sulawesi palm civet gets as big as 68.9 cm (2′ 4″)
- Red-legged pademelon gets as big as 56.6 cm (1′ 11″)
- Tana River red colobus gets as big as 56 cm (1′ 11″)
- Patagonian mara gets as big as 66.4 cm (2′ 3″)
- Red-rumped agouti gets as big as 57.4 cm (1′ 11″)
- Bay cat gets as big as 55 cm (1′ 10″)