How many baby Three-striped night monkeys are in a litter?
A Three-striped night monkey (Aotus trivirgatus) usually gives birth to around 1 babies.
Each of those little ones spend around 133 days as a fetus before they are released into the wild. Upon birth, they weight 96 grams (0.21 lbs) and measure 3.7 cm (0′ 2″). They are a member of the Cebidae family (genus: Aotus). An adult Three-striped night monkey grows up to a size of 35.8 cm (1′ 3″).
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 three-striped night monkey (Aotus trivirgatus), also known as northern night monkey or northern owl monkey, is one of several species of owl monkeys currently recognised. It is found in Venezuela and north-central Brazil.Until 1983, all the owl monkeys were regarded as subspecies of Aotus trivirgatus, and all were referred to as douroucoulis. The use of the name douroucouli exclusively for the three-striped night monkey is not universally accepted; some authors use it for the entire genus, or for the grey-necked group of species within it (to which A. trivirgatus belongs).Like other owl monkeys, the three-striped night monkey lives in woodlands including rain forest. It is mainly black, with striking white markings on its face. Its body size is 27–48 cm, and its tail is about the same length again. Adults weigh up to 1 kg. It has very large eyes, and is most active on moonlit nights, feeding on fruit, nuts, leaves, insects and other small invertebrates, and birds’ eggs.The three-striped night monkey forms pair bonds which are broken only by the death of one partner. It lives in family groups, with the immature young staying with their parents until sexual maturity at the age of 3 or 4. Normally only one infant is born, after a gestation period of a little over 4 months.
Other animals of the family Cebidae
Three-striped night monkey is a member of the Cebidae, as are these animals:
- Guianan squirrel monkey with 1 babies per pregnancy
- Guatemalan black howler with 1 babies per pregnancy
- Mantled howler with 1 babies per pregnancy
- White-nosed saki with 1 babies per pregnancy
- White-faced saki with 1 babies per pregnancy
- Gray-bellied night monkey with 1 babies per pregnancy
- Gray-bellied night monkey weighting only 800 grams
- Coppery titi with 1 babies per pregnancy
- Black capuchin with 1 babies per pregnancy
- White-footed saki weighting around 2.8 kilograms (6.17 lbs)
Animals that share a litter size with Three-striped night monkey
Those animals also give birth to 1 babies at once:
- Rafinesque’s big-eared bat
- Whiskered bat
- Moonrat
- Western long-tongued bat
- Scaly-tailed possum
- Northern glider
- Lesser horseshoe bat
- Lesser Asiatic yellow bat
- European bison
- Olive baboon
Animals that get as old as a Three-striped night monkey
Other animals that usually reach the age of 25.25 years:
- Aardwolf with 25 years
- Black howler with 20.25 years
- California sea lion with 30 years
- Platypus with 22 years
- Cacomistle with 23 years
- West Caucasian tur with 20.5 years
- Townsend’s big-eared bat with 21.17 years
- Addax with 25.67 years
- Himalayan tahr with 21.75 years
- Honey badger with 26.5 years
Animals with the same weight as a Three-striped night monkey
What other animals weight around 912 grams (2.01 lbs)?
- Montane guinea pig usually reaching 1 kgs (2.2 lbs)
- Black-footed ferret weighting 907 grams
- Cape gray mongoose weighting 791 grams
- Long-nosed echymipera usually reaching 1.05 kgs (2.31 lbs)
- Northern greater galago weighting 812 grams
- Ashy black titi weighting 992 grams
- Mottle-faced tamarin weighting 803 grams
- Poncelet’s giant rat usually reaching 1 kgs (2.2 lbs)
- Lemur-like ringtail possum weighting 997 grams
- Western woolly lemur weighting 828 grams
Animals with the same size as a Three-striped night monkey
Also reaching around 35.8 cm (1′ 3″) in size do these animals:
- Palawan stink badger gets as big as 39 cm (1′ 4″)
- Mexican prairie dog gets as big as 34.2 cm (1′ 2″)
- Forest giant squirrel gets as big as 29.1 cm (1′ 0″)
- Indian grey mongoose gets as big as 40 cm (1′ 4″)
- White-tailed prairie dog gets as big as 30.7 cm (1′ 1″)
- Golden bamboo lemur gets as big as 30.5 cm (1′ 1″)
- Marsh rabbit gets as big as 40.2 cm (1′ 4″)
- Black dwarf porcupine gets as big as 35 cm (1′ 2″)
- Rio Tapajós saki gets as big as 39.9 cm (1′ 4″)
- Volcano rabbit gets as big as 29.7 cm (1′ 0″)