It is hard to guess what a Black-shanked douc weights. But we have the answer:
An adult Black-shanked douc (Pygathrix nigripes) on average weights 10.33 kg (22.78 lbs).
The Black-shanked douc is from the family Cercopithecidae (genus: Pygathrix). When reaching adult age, they grow up to 60.9 cm (2′ 0″). Usually, Black-shanked doucs 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 black-shanked douc (Pygathrix nigripes) is an endangered species of douc found mostly in the forests of eastern Cambodia, with some smaller populations in Vietnam. This species is unique among the doucs in having a largely greyish-blue face. No global population estimate exists, although the Wildlife Conservation Society report an estimated 23,000 individuals present in Cambodia’s Keo Seima Wildlife Sanctuary. Prior to the discovery of the significance of this population, the largest populations were believed to be in adjacent Vietnam, where the largest known population is around 500-600 individuals. They are primarily arboreal and their diet consists on leaves, of which they obtain most of their water.
Animals of the same family as a Black-shanked douc
We found other animals of the Cercopithecidae family:
- Tibetan macaque bringing 10.6 kilos (23.37 lbs) to the scale
- Tonkin snub-nosed monkey bringing 9.12 kilos (20.11 lbs) to the scale
- Chacma baboon bringing 17.73 kilos (39.09 lbs) to the scale
- Southern pig-tailed macaque bringing 7.85 kilos (17.31 lbs) to the scale
- Drill (animal) bringing 14.23 kilos (31.37 lbs) to the scale
- Grey-cheeked mangabey bringing 7.39 kilos (16.29 lbs) to the scale
- Sooty mangabey bringing 6.94 kilos (15.3 lbs) to the scale
- White-throated guenon bringing 3.44 kilos (7.58 lbs) to the scale
- Mandrill bringing 16.74 kilos (36.91 lbs) to the scale
- Assam macaque bringing 8.55 kilos (18.85 lbs) to the scale
Animals with the same weight as a Black-shanked douc
As a comparison, here are some other animals that weight as much as the Pygathrix nigripes:
- Black-headed spider monkey with a weight of 9.07 kilos (20 lbs)
- Japanese macaque with a weight of 10.11 kilos (22.29 lbs)
- Eurasian otter with a weight of 8.86 kilos (19.53 lbs)
- Red-shanked douc with a weight of 9.48 kilos (20.9 lbs)
- Smooth-coated otter with a weight of 8.96 kilos (19.75 lbs)
- Beira (antelope) with a weight of 10.91 kilos (24.05 lbs)
- Pudú with a weight of 9.6 kilos (21.16 lbs)
- Yellow-tailed woolly monkey with a weight of 8.27 kilos (18.23 lbs)
- Red-faced spider monkey with a weight of 8.7 kilos (19.18 lbs)
- Black-striped wallaby with a weight of 11.23 kilos (24.76 lbs)
Animals with the same size as a Black-shanked douc
Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Black-shanked douc:
- Cape fox with a size of 53.4 cm (1′ 10″)
- Hoary fox with a size of 60.3 cm (2′ 0″)
- Black-footed mongoose with a size of 61.3 cm (2′ 1″)
- Zanzibar red colobus with a size of 57.4 cm (1′ 11″)
- Ethiopian highland hare with a size of 51 cm (1′ 9″)
- Sri Lankan spotted chevrotain with a size of 54 cm (1′ 10″)
- Sechuran fox with a size of 56.2 cm (1′ 11″)
- Black-and-white ruffed lemur with a size of 54.7 cm (1′ 10″)
- Tonkin snub-nosed monkey with a size of 56.9 cm (1′ 11″)
- Günther’s dik-dik with a size of 61.2 cm (2′ 1″)
Animals with the same litter size as a Black-shanked douc
Here is a list of animals that have the same number of babies per litter (1) as a Black-shanked douc: