How many baby Yellow-tailed woolly monkeys are in a litter?
A Yellow-tailed woolly monkey (Oreonax flavicauda) usually gives birth to around 1 babies.
Each of those little ones spend around 225 days as a fetus before they are released into the wild. Upon birth, they weight 3 grams (0.01 lbs) and measure 2.9 cm (0′ 2″). They are a member of the Atelidae family (genus: Oreonax). An adult Yellow-tailed woolly monkey grows up to a size of 55 cm (1′ 10″).
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 yellow-tailed woolly monkey (Oreonax flavicauda) is a New World monkey endemic to Peru. It is a rare primate species found only in the Peruvian Andes, in the departments of Amazonas and San Martin, as well as bordering areas of La Libertad, Huánuco, and Loreto. The yellow-tailed woolly monkey was at first classified in the genus Lagothrix along with other woolly monkeys, but due to debatable primary sources, they have been placed in Oreonax. Oreonax has been proposed to be a subgenus of Lagothrix, but others have regarded it as a full genus. A recent extensive study suggests that the yellow-tailed woolly monkey may indeed be in Lagothrix.
Other animals of the family Atelidae
Yellow-tailed woolly monkey is a member of the Atelidae, as are these animals:
- Brown howler weighting around 5.19 kilograms (11.44 lbs)
Animals that share a litter size with Yellow-tailed woolly monkey
Those animals also give birth to 1 babies at once:
- Long-footed treeshrew
- Pygmy ringtail possum
- Silver-haired bat
- Rufous elephant shrew
- Yellow-winged bat
- Arabian oryx
- Indian pipistrelle
- Daubenton’s bat
- Angolan free-tailed bat
- Northern bottlenose whale
Animals with the same weight as a Yellow-tailed woolly monkey
What other animals weight around 8.23 kg (18.14 lbs)?
- Purple-faced langur usually reaching 7.53 kgs (16.6 lbs)
- Hoolock gibbon usually reaching 6.7 kgs (14.77 lbs)
- North American river otter usually reaching 8.09 kgs (17.84 lbs)
- Crab-eating raccoon usually reaching 6.94 kgs (15.3 lbs)
- Large Indian civet usually reaching 9.15 kgs (20.17 lbs)
- Preuss’s red colobus usually reaching 8.91 kgs (19.64 lbs)
- Celebes crested macaque usually reaching 7.37 kgs (16.25 lbs)
- Maxwell’s duiker usually reaching 8.56 kgs (18.87 lbs)
- Collared mangabey usually reaching 7.29 kgs (16.07 lbs)
- Guatemalan black howler usually reaching 7.19 kgs (15.85 lbs)
Animals with the same size as a Yellow-tailed woolly monkey
Also reaching around 55 cm (1′ 10″) in size do these animals:
- European wildcat gets as big as 50 cm (1′ 8″)
- Northern white-cheeked gibbon gets as big as 54.5 cm (1′ 10″)
- Brown palm civet gets as big as 58.9 cm (2′ 0″)
- Tasmanian devil gets as big as 55.7 cm (1′ 10″)
- White-tailed mongoose gets as big as 57.3 cm (1′ 11″)
- Golden snub-nosed monkey gets as big as 64.7 cm (2′ 2″)
- Swamp rabbit gets as big as 45.8 cm (1′ 7″)
- Crab-eating raccoon gets as big as 60.3 cm (2′ 0″)
- Crab-eating mongoose gets as big as 50.8 cm (1′ 8″)
- Raccoon gets as big as 48.6 cm (1′ 8″)