Litter Size

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

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

A Black-tufted marmoset (Callithrix penicillata) usually gives birth to around 2 babies.

Upon birth, they weight 27 grams (0.06 lbs) and measure 12.5 cm (0′ 5″). They are a member of the Callitrichidae family (genus: Callithrix). An adult Black-tufted marmoset grows up to a size of 24 cm (0′ 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 average litter size of a Black-tufted marmoset is 2

The black-tufted marmoset (Callithrix penicillata), also known as Mico-estrela in Portuguese, is a species of New World monkey that lives primarily in the Neo-tropical gallery forests of the Brazilian Central Plateau. It ranges from Bahia to Paraná, and as far inland as Goiás, between 14 and 25 degrees south of the equator, and can commonly be seen in the City of Rio de Janeiro where it was introduced. This marmoset typically resides in rainforests, living an arboreal life high in the trees, but below the canopy. They are only rarely spotted near the ground.

Other animals of the family Callitrichidae

Black-tufted marmoset is a member of the Callitrichidae, as are these animals:

Animals that share a litter size with Black-tufted marmoset

Those animals also give birth to 2 babies at once:

Animals with the same weight as a Black-tufted marmoset

What other animals weight around 340 grams (0.75 lbs)?