Litter Size

How many babies does a Black-headed marmoset have at once? (litter size)

How many baby Black-headed marmosets are in a litter?

A Black-headed marmoset (Callithrix nigriceps) usually gives birth to around 2 babies.

Upon birth, they weight 3 grams (0.01 lbs) and measure 11.1 cm (0′ 5″). They are a member of the Cebidae family (genus: Callithrix). An adult Black-headed marmoset grows up to a size of 14.6 cm (0′ 6″).

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 Black-headed marmoset is 2

The black-headed marmoset (Mico nigriceps) is a marmoset species endemic to Brazil. It inhabits humid tropical rainforest, mostly second growth and edge; the distribution is not exactly known but is thought to be Rio dos Marmelos in the north and east, Madeira River in the west and Ji-Paraná River in the south. The threats are not exactly known but it may be near human traffic including the Trans-Amazonian Highway where cattle ranching and logging is occurring. It is not hunted but may be used as pets.

Other animals of the family Cebidae

Black-headed marmoset is a member of the Cebidae, as are these animals:

Animals that share a litter size with Black-headed marmoset

Those animals also give birth to 2 babies at once:

Animals with the same weight as a Black-headed marmoset

What other animals weight around 401 grams (0.88 lbs)?