It is hard to guess what a François’ langur weights. But we have the answer:
An adult François’ langur (Trachypithecus francoisi) on average weights 8.16 kg (17.98 lbs).
The François’ langur is from the family Cercopithecidae (genus: Trachypithecus). It is usually born with about 455 grams (1 lbs). When reaching adult age, they grow up to 58.9 cm (2′ 0″). Usually, François’ 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 François’ langur (Trachypithecus francoisi), also known as the Francois’ leaf monkey, Tonkin leaf monkey, or white side-burned black langur is a species of lutung and the type species of its species group. It is one of the least studied of the species belonging to the Colobinae subfamily.The species is distributed from Southwestern China to northeastern Vietnam. The total number of wild individuals is unknown, but fewer than 500 are believed to be left in Vietnam and 1,400–1,650 in China. About 60 langurs are in captivity in North American zoos. The species is named after Auguste François (1857–1935), who was the French Consul at Lungchow in southern China.
Animals of the same family as a François’ langur
We found other animals of the Cercopithecidae family:
- Agile mangabey bringing 7.11 kilos (15.67 lbs) to the scale
- East Javan langur bringing 9.72 kilos (21.43 lbs) to the scale
- L’Hoest’s monkey bringing 5.31 kilos (11.71 lbs) to the scale
- Olive baboon bringing 17.73 kilos (39.09 lbs) to the scale
- Hamadryas baboon bringing 14.97 kilos (33 lbs) to the scale
- Capped langur bringing 11.21 kilos (24.71 lbs) to the scale
- Bonnet macaque bringing 5 kilos (11.02 lbs) to the scale
- Western red colobus bringing 8.43 kilos (18.58 lbs) to the scale
- Northern plains gray langur bringing 12.64 kilos (27.87 lbs) to the scale
- Collared mangabey bringing 7.29 kilos (16.07 lbs) to the scale
Animals with the same weight as a François’ langur
As a comparison, here are some other animals that weight as much as the Trachypithecus francoisi:
- American badger with a weight of 7.84 kilos (17.28 lbs)
- Collared mangabey with a weight of 7.29 kilos (16.07 lbs)
- Tonkin snub-nosed monkey with a weight of 9.09 kilos (20.04 lbs)
- Patas monkey with a weight of 7.99 kilos (17.61 lbs)
- Northern white-cheeked gibbon with a weight of 7.32 kilos (16.14 lbs)
- Pig-tailed langur with a weight of 7.39 kilos (16.29 lbs)
- Hog badger with a weight of 8.17 kilos (18.01 lbs)
- Pudú with a weight of 9.61 kilos (21.19 lbs)
- Guatemalan black howler with a weight of 7.19 kilos (15.85 lbs)
- Thomas’s langur with a weight of 6.69 kilos (14.75 lbs)
Animals with the same size as a François’ langur
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as François’ langur:
- Red-shanked douc with a size of 61.7 cm (2′ 1″)
- Greater long-nosed armadillo with a size of 55.7 cm (1′ 10″)
- Pale-throated sloth with a size of 54.8 cm (1′ 10″)
- Tonkin snub-nosed monkey with a size of 56.9 cm (1′ 11″)
- Pig-tailed langur with a size of 49.9 cm (1′ 8″)
- Sri Lankan spotted chevrotain with a size of 54 cm (1′ 10″)
- Grivet with a size of 56 cm (1′ 11″)
- Sharpe’s grysbok with a size of 67.9 cm (2′ 3″)
- Gelada with a size of 62 cm (2′ 1″)
- Brown dorcopsis with a size of 67.9 cm (2′ 3″)
Animals with the same litter size as a François’ langur
Here is a list of animals that have the same number of babies per litter (1) as a François’ langur: