It is hard to guess what a Pig-tailed langur weights. But we have the answer:
An adult Pig-tailed langur (Nasalis concolor) on average weights 7.39 kg (16.29 lbs).
The Pig-tailed langur is from the family Cercopithecidae (genus: Nasalis). 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:
- East Javan langur bringing 9.72 kilos (21.43 lbs) to the scale
- Wolf’s mona monkey bringing 3.26 kilos (7.19 lbs) to the scale
- White-throated guenon bringing 3.44 kilos (7.58 lbs) to the scale
- Angola colobus bringing 8.99 kilos (19.82 lbs) to the scale
- Bonnet macaque bringing 5 kilos (11.02 lbs) to the scale
- Lion-tailed macaque bringing 6 kilos (13.23 lbs) to the scale
- Pennant’s colobus bringing 9.16 kilos (20.19 lbs) to the scale
- Olive baboon bringing 17.73 kilos (39.09 lbs) to the scale
- Assam macaque bringing 8.55 kilos (18.85 lbs) to the scale
- Japanese macaque bringing 10.11 kilos (22.29 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 Nasalis concolor:
- Black dorcopsis with a weight of 6.2 kilos (13.67 lbs)
- Pig-tailed langur with a weight of 7.39 kilos (16.29 lbs)
- Moor macaque with a weight of 7.29 kilos (16.07 lbs)
- Black crested mangabey with a weight of 6.51 kilos (14.35 lbs)
- Patas monkey with a weight of 7.99 kilos (17.61 lbs)
- Western red colobus with a weight of 8.43 kilos (18.58 lbs)
- Maxwell’s duiker with a weight of 8.56 kilos (18.87 lbs)
- Culpeo with a weight of 8.62 kilos (19 lbs)
- Peruvian spider monkey with a weight of 7.09 kilos (15.63 lbs)
- Southern pig-tailed macaque with a weight of 7.85 kilos (17.31 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:
- Dusky leaf monkey with a size of 54.9 cm (1′ 10″)
- Steppe polecat with a size of 43.5 cm (1′ 6″)
- Marsh mongoose with a size of 50 cm (1′ 8″)
- Preuss’s red colobus with a size of 57.9 cm (1′ 11″)
- Red-faced spider monkey with a size of 57.6 cm (1′ 11″)
- Common brown lemur with a size of 46.3 cm (1′ 7″)
- Mentawai langur with a size of 51 cm (1′ 9″)
- Toque macaque with a size of 48 cm (1′ 7″)
- Formosan rock macaque with a size of 56 cm (1′ 11″)
- Arabian gazelle with a size of 50 cm (1′ 8″)
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: