How many baby Zanzibar red colobuss are in a litter?
A Zanzibar red colobus (Piliocolobus kirkii) usually gives birth to around 1 babies.
Each of those little ones spend around 165 days as a fetus before they are released into the wild. Upon birth, they weight 19 grams (0.04 lbs) and measure 4 cm (0′ 2″). They are a member of the Cercopithecidae family (genus: Piliocolobus). An adult Zanzibar red colobus grows up to a size of 57.4 cm (1′ 11″).
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 Zanzibar red colobus (Piliocolobus kirkii) is a species of red colobus monkey endemic to Unguja, the main island of the Zanzibar Archipelago, off the coast of Tanzania. It is also known as Kirk’s red colobus after Sir John Kirk, the British Resident of Zanzibar who first brought it to the attention of zoological science. It is now classified as an endangered species and in the mid-1990s was adopted as the flagship species for conservation in Zanzibar. The population is still decreasing, and conservationists are attempting to work with the local government to devise a proper, effective strategy to protect the population and habitat. Challenges include the species’ habitat, which is limited to the archipelago. The species has been reclassified three times; it was previously in the genus Colobus, then in the genus Procolobus, and later in the genus Piliocolobus.
Other animals of the family Cercopithecidae
Zanzibar red colobus is a member of the Cercopithecidae, as are these animals:
- Rhesus macaque with 1 babies per pregnancy
- Mona monkey with 1 babies per pregnancy
- Pennant’s colobus with 1 babies per pregnancy
- Japanese macaque with 1 babies per pregnancy
- Northern plains gray langur with 1 babies per pregnancy
- Yellow baboon with 1 babies per pregnancy
- East Javan langur weighting around 9.72 kilograms (21.43 lbs)
- White-fronted surili weighting around 6.12 kilograms (13.49 lbs)
- Grey-cheeked mangabey with 1 babies per pregnancy
- Thollon’s red colobus raching a size of 57 cm (1′ 11″)
Animals that share a litter size with Zanzibar red colobus
Those animals also give birth to 1 babies at once:
- Bare-backed rousette
- Jamaican fruit bat
- Caribbean monk seal
- Western red colobus
- Fire-bellied brush-furred rat
- Red fruit bat
- Northern common cuscus
- Big-eared woolly bat
- Black-shanked douc
- Earless water rat
Animals with the same weight as a Zanzibar red colobus
What other animals weight around 7.16 kg (15.78 lbs)?
- Tana River mangabey usually reaching 7.08 kgs (15.61 lbs)
- North American river otter usually reaching 8.09 kgs (17.84 lbs)
- Purple-faced langur usually reaching 7.53 kgs (16.6 lbs)
- Thomas’s langur usually reaching 6.69 kgs (14.75 lbs)
- Crab-eating raccoon usually reaching 6.94 kgs (15.3 lbs)
- North American porcupine usually reaching 7.42 kgs (16.36 lbs)
- Southern pig-tailed macaque usually reaching 7.85 kgs (17.31 lbs)
- Maxwell’s duiker usually reaching 8.44 kgs (18.61 lbs)
- Mantled howler usually reaching 6.58 kgs (14.51 lbs)
- Jaguarundi usually reaching 6.88 kgs (15.17 lbs)
Animals with the same size as a Zanzibar red colobus
Also reaching around 57.4 cm (1′ 11″) in size do these animals:
- Pennant’s colobus gets as big as 56.9 cm (1′ 11″)
- Müeller’s gibbon gets as big as 54.5 cm (1′ 10″)
- Bunyoro rabbit gets as big as 47 cm (1′ 7″)
- Golden-crowned sifaka gets as big as 47.5 cm (1′ 7″)
- Black colobus gets as big as 62.9 cm (2′ 1″)
- Owston’s palm civet gets as big as 57.2 cm (1′ 11″)
- Moor macaque gets as big as 66 cm (2′ 2″)
- Black crested gibbon gets as big as 54.5 cm (1′ 10″)
- Western long-beaked echidna gets as big as 67.5 cm (2′ 3″)
- Small-toothed palm civet gets as big as 52.8 cm (1′ 9″)