How many baby Pig-tailed langurs are in a litter?
A Pig-tailed langur (Nasalis concolor) usually gives birth to around 1 babies.
Upon birth, they weight 5 grams (0.01 lbs) and measure 3 cm (0′ 2″). They are a member of the Cercopithecidae family (genus: Nasalis). An adult Pig-tailed langur grows up to a size of 49.9 cm (1′ 8″).
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 pig-tailed langur (Simias concolor), monotypic in genus Simias, is a large Old World monkey, endemic to several small islands off the coast of Sumatra in Indonesia. Its face is black, its fur is blackish-brown and it has a relatively short tail. It is a diurnal species, feeding in small groups in the rainforest canopy on leaves, and to a lesser extent, fruit and berries. Little is known of its natural history, but it is heavily hunted, its populations have been declining rapidly and the International Union for Conservation of Nature has assessed its conservation status as being “critically endangered”. It has been included on a list of the World’s 25 Most Endangered Primates.
Other animals of the family Cercopithecidae
Pig-tailed langur is a member of the Cercopithecidae, as are these animals:
- Raffles’ banded langur weighting around 7.02 kilograms (15.48 lbs)
- Capped langur weighting around 11.21 kilograms (24.71 lbs)
- Black snub-nosed monkey weighting around 11 kilograms (24.25 lbs)
- Assam macaque weighting around 8.55 kilograms (18.85 lbs)
- Ursine colobus with 1 babies per pregnancy
- Sykes’ monkey with 1 babies per pregnancy
- Formosan rock macaque with 1 babies per pregnancy
- Tana River red colobus with 1 babies per pregnancy
- Sclater’s guenon with 1 babies per pregnancy
- Angola colobus with 1 babies per pregnancy
Animals that share a litter size with Pig-tailed langur
Those animals also give birth to 1 babies at once:
- Rothschild’s woolly rat
- New Zealand lesser short-tailed bat
- Okapi
- African sheath-tailed bat
- Red-bellied lemur
- Four-toed elephant shrew
- Dusky elephant shrew
- Tasmanian pademelon
- Yellow-bellied glider
- Eld’s deer
Animals with the same weight as a Pig-tailed langur
What other animals weight around 7.39 kg (16.29 lbs)?
- Assam macaque usually reaching 8.55 kgs (18.85 lbs)
- Malayan porcupine usually reaching 8 kgs (17.64 lbs)
- François’ langur usually reaching 8.16 kgs (17.99 lbs)
- Purple-faced langur usually reaching 7.53 kgs (16.6 lbs)
- Crab-eating raccoon usually reaching 6.94 kgs (15.3 lbs)
- Western red colobus usually reaching 8.43 kgs (18.58 lbs)
- North American river otter usually reaching 8.09 kgs (17.84 lbs)
- Lowland paca usually reaching 8.18 kgs (18.03 lbs)
- Northern nail-tail wallaby usually reaching 6.5 kgs (14.33 lbs)
- Pig-tailed langur usually reaching 7.39 kgs (16.29 lbs)
Animals with the same size as a Pig-tailed langur
Also reaching around 49.9 cm (1′ 8″) in size do these animals:
- Brown howler gets as big as 51.5 cm (1′ 9″)
- Stein’s cuscus gets as big as 42.4 cm (1′ 5″)
- Preuss’s red colobus gets as big as 57.9 cm (1′ 11″)
- White-cheeked spider monkey gets as big as 46 cm (1′ 7″)
- Celebes crested macaque gets as big as 54.9 cm (1′ 10″)
- Subalpine woolly rat gets as big as 41.7 cm (1′ 5″)
- Northern olingo gets as big as 41.2 cm (1′ 5″)
- Beech marten gets as big as 46 cm (1′ 7″)
- Broom hare gets as big as 50.2 cm (1′ 8″)
- Wolf’s mona monkey gets as big as 48 cm (1′ 7″)