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Litter Size

How many babies does a Rio Mayo titi have at once? (litter size)

How many baby Rio Mayo titis are in a litter?

A Rio Mayo titi (Callicebus oenanthe) usually gives birth to around 1 babies.

Upon birth, they weight 74 grams (0.16 lbs) and measure 12.5 cm (0′ 5″). They are a member of the Cebidae family (genus: Callicebus). An adult Rio Mayo titi 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 average litter size of a Rio Mayo titi is 1

The Rio Mayo titi (Plecturocebus oenanthe) is a species of titi, a type of New World monkey, endemic to Peru. The Rio Mayo titi, was thought previously to have a small range of origin in the Alto Mayo valley, but research has proven that the range extends southward and reaches the Huayamba River, as well as Bajo Mayo. It had been classified as vulnerable but due to major habitat loss and restricted living space, it is now classified as Critically Endangered. In October 2012, it was included in The World’s 25 Most Endangered Primates list. An increase in deforestation is leading to the decrease in available living space for this titi monkey, forcing it to live in sympatry with another species of Callicebus. Yet in some areas, such drastic deforestation has resulted in extremely high population density. The Rio Mayo titi is better adapted to moderately populated areas, thus overpopulation negatively impacts the species. The forests the Rio Mayo titi lives in are being destroyed for agricultural purposes, leaving little forest for the monkeys. They were only seen a few times and featured in museums until 2003 when more research was done on them. In order for this species to survive, their forests need to be protected to avoid overpopulation. Different conservation groups are working to help P. oenanthe survive. Neotropical Primate Conservation, Proyecto Mono Tocón and Amazónicos para la Amazonia are working in the more southern areas to protect the monkey.The Rio Mayo titi is a fairly inconspicuous creature, making observation and research difficult to obtain. Therefore, the traditional use of transect observation to monitor the monkey’s population, is less effective. Instead, other methods of calculating the titi monkey’s density in certain areas have been taken, such as research into the species-specific calls endemic to a certain area.

Other animals of the family Cebidae

Rio Mayo titi is a member of the Cebidae, as are these animals:

Animals that share a litter size with Rio Mayo titi

Those animals also give birth to 1 babies at once:

Animals with the same weight as a Rio Mayo titi

What other animals weight around 992 grams (2.19 lbs)?