It is hard to guess what a Pig-tailed langur weights. But we have the answer:
An adult Pig-tailed langur (Simias concolor) on average weights 7.39 kg (16.3 lbs).
The Pig-tailed langur is from the family Cercopithecidae (genus: Simias). When reaching adult age, they grow up to 49.9 cm (1′ 8″). Usually, Pig-tailed langurs 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 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.
Animals of the same family as a Pig-tailed langur
We found other animals of the Cercopithecidae family:
- Crested mona monkey bringing 3.58 kilos (7.89 lbs) to the scale
- Patas monkey bringing 7.99 kilos (17.61 lbs) to the scale
- Agile mangabey bringing 7.11 kilos (15.67 lbs) to the scale
- Thollon’s red colobus with a size of 57 cm (1′ 11″)
- Gray snub-nosed monkey bringing 12.3 kilos (27.12 lbs) to the scale
- Booted macaque bringing 2.75 kilos (6.06 lbs) to the scale
- Gray snub-nosed monkey bringing 12.27 kilos (27.05 lbs) to the scale
- Blue monkey bringing 5.04 kilos (11.11 lbs) to the scale
- Delacour’s langur with a size of 57.7 cm (1′ 11″)
- East Javan langur bringing 9.72 kilos (21.43 lbs) to the scale
Animals with the same weight as a Pig-tailed langur
As a comparison, here are some other animals that weight as much as the Simias concolor:
- Agile mangabey with a weight of 7.11 kilos (15.67 lbs)
- North American river otter with a weight of 8.09 kilos (17.84 lbs)
- Bobcat with a weight of 6.38 kilos (14.07 lbs)
- Lion-tailed macaque with a weight of 6 kilos (13.23 lbs)
- Grey-cheeked mangabey with a weight of 7.39 kilos (16.29 lbs)
- Geoffroy’s spider monkey with a weight of 7.6 kilos (16.76 lbs)
- Purple-faced langur with a weight of 7.53 kilos (16.6 lbs)
- Jaguarundi with a weight of 6.88 kilos (15.17 lbs)
- Lowland paca with a weight of 8.18 kilos (18.03 lbs)
- Ursine colobus with a weight of 7.7 kilos (16.98 lbs)
Animals with the same size as a Pig-tailed langur
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Pig-tailed langur:
- Yellow-bellied marmot with a size of 41.2 cm (1′ 5″)
- Meller’s mongoose with a size of 46 cm (1′ 7″)
- Capped langur with a size of 57.5 cm (1′ 11″)
- Nilgiri marten with a size of 51.3 cm (1′ 9″)
- Allen’s swamp monkey with a size of 45.9 cm (1′ 7″)
- Black-and-white ruffed lemur with a size of 54.7 cm (1′ 10″)
- Brown howler with a size of 51.4 cm (1′ 9″)
- Red-faced spider monkey with a size of 57.6 cm (1′ 11″)
- Long-nosed echymipera with a size of 45.3 cm (1′ 6″)
- Pale-throated sloth with a size of 54.8 cm (1′ 10″)
Animals with the same litter size as a Pig-tailed langur
Here is a list of animals that have the same number of babies per litter (1) as a Pig-tailed langur: