How many baby Black-headed spider monkeys are in a litter?
A Black-headed spider monkey (Ateles fusciceps) usually gives birth to around 1 babies.
Each of those little ones spend around 224 days as a fetus before they are released into the wild. Upon birth, they weight 500 grams (1.1 lbs) and measure 5.8 cm (0′ 3″). They are a member of the Cebidae family (genus: Ateles). An adult Black-headed spider monkey grows up to a size of 48.9 cm (1′ 8″).
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 black-headed spider monkey (Ateles fusciceps) is a species of spider monkey, a type of New World monkey, from Central and South America. It is found in Colombia, Ecuador, and Panama. Although primatologists such as Colin Groves (1989) follow Kellogg and Goldman (1944) in treating A. fusciceps as a separate species, other authors, including Froelich (1991), Collins and Dubach (2001) and Nieves (2005) treat it as a subspecies of Geoffroy’s spider monkey.The two subspecies are:Ateles fusciceps fusciceps – northwestern Ecuador.Ateles fusciceps rufiventris – southwest Colombia to eastern Panama.A. f. fusciceps lives in tropical and subtropical humid forests between 100 and 1,700 metres (330 and 5,580 ft) above sea level. It lives in population densities of 1.2 monkeys per square kilometer. A. f. rufiventris lives in dry forests, humid forests and cloud forests, and can live up to 2,000 to 2,500 metres (6,600 to 8,200 ft) above sea level.A. f. fusciceps has a black or brown body and a brown head. A. f. rufiventris is entirely black with some white on its chin. The black-headed spider monkey is one of the larger New World monkeys. The head and body length, excluding tail, typically ranges between 39.3 and 53.8 cm (15.5 and 21.2 in). The prehensile tail is between 71.0 and 85.5 cm (28.0 and 33.7 in). On average, males weigh 8.89 kilograms (19.6 lb) and females weigh 8.8 kilograms (19 lb). The brain weighs 114.7 g (4.05 oz).The black-headed spider monkey is arboreal and diurnal. It moves by climbing and brachiation. When mating, females may consort with a male for up to three days, or else mate with several males. Mating occurs with the male and female face to face, and can last for five to 10 minutes. The gestation period is between 226 and 232 days. The infant rides on its mother’s back for 16 weeks, and is weaned at 20 months. Females attain sexual maturity at 51 months; males at 56 months. Females give birth every three years.The black-headed spider monkey is considered to be critically endangered by the International Union for Conservation of Nature (IUCN) due to an estimated population loss of more than 80% over 45 years, from hunting and human encroachment on its range of habitation.Captive black-headed spider monkeys have been known to live more than 24 years.
Other animals of the family Cebidae
Black-headed spider monkey is a member of the Cebidae, as are these animals:
- Gray-bellied night monkey with 1 babies per pregnancy
- Wedge-capped capuchin with 1 babies per pregnancy
- Colombian white-faced capuchin with 1 babies per pregnancy
- Venezuelan red howler with 1 babies per pregnancy
- White-nosed saki with 1 babies per pregnancy
- Brumback’s night monkey weighting only 603 grams
- White-faced saki with 1 babies per pregnancy
- Aotus infulatus weighting only 800 grams
- Bare-eared squirrel monkey with 1 babies per pregnancy
- Atlantic titi with 1 babies per pregnancy
Animals that share a litter size with Black-headed spider monkey
Those animals also give birth to 1 babies at once:
- Gray bat
- Père David’s vole
- Southern tree hyrax
- Mule deer
- Malagasy serotine
- African brush-tailed porcupine
- Long-nosed mosaic-tailed rat
- Orange leaf-nosed bat
- Northern bat
- Merriam’s pocket gopher
Animals that get as old as a Black-headed spider monkey
Other animals that usually reach the age of 24 years:
- Margay with 20 years
- Aardvark with 24 years
- Scimitar oryx with 20.42 years
- Common vampire bat with 19.5 years
- Koala with 20 years
- Gemsbok with 20 years
- Naemorhedus sumatraensis with 21 years
- Southern hairy-nosed wombat with 24.5 years
- Crested mona monkey with 24.08 years
- Monk saki with 24.58 years
Animals with the same weight as a Black-headed spider monkey
What other animals weight around 9.07 kg (19.99 lbs)?
- Hog badger usually reaching 8.17 kgs (18.01 lbs)
- Side-striped jackal usually reaching 10.4 kgs (22.93 lbs)
- Indri usually reaching 8.61 kgs (18.98 lbs)
- Western long-beaked echidna usually reaching 8.95 kgs (19.73 lbs)
- Aardwolf usually reaching 8.14 kgs (17.95 lbs)
- Celebes crested macaque usually reaching 7.37 kgs (16.25 lbs)
- Maxwell’s duiker usually reaching 8.56 kgs (18.87 lbs)
- Pig-tailed langur usually reaching 7.39 kgs (16.29 lbs)
- Western brush wallaby usually reaching 8 kgs (17.64 lbs)
- Ursine colobus usually reaching 7.7 kgs (16.98 lbs)
Animals with the same size as a Black-headed spider monkey
Also reaching around 48.9 cm (1′ 8″) in size do these animals:
- Arctic fox gets as big as 56.4 cm (1′ 11″)
- Antelope jackrabbit gets as big as 54.6 cm (1′ 10″)
- Tana River red colobus gets as big as 56 cm (1′ 11″)
- Sarcophilus laniarius gets as big as 55.8 cm (1′ 10″)
- Mexican cottontail gets as big as 43.5 cm (1′ 6″)
- Aquatic genet gets as big as 45.8 cm (1′ 7″)
- Royal antelope gets as big as 49.9 cm (1′ 8″)
- Crab-eating mongoose gets as big as 50.8 cm (1′ 8″)
- Brown howler gets as big as 51.4 cm (1′ 9″)
- Bridled nail-tail wallaby gets as big as 52.5 cm (1′ 9″)