Litter Size

How many babies does a Alston’s cotton rat have at once? (litter size)

How many baby Alston’s cotton rats are in a litter?

A Alston’s cotton rat (Sigmodon alstoni) usually gives birth to around 5 babies.With 5 litters per year, that sums up to a yearly offspring of 25 babies.

Upon birth, they weight 15 kg (33.07 lbs) and measure 1.6 cm (0′ 1″). They are a member of the Muridae family (genus: Sigmodon). An adult Alston’s cotton rat grows up to a size of 18.5 cm (0′ 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.

Alston’s cotton rat (Sigmodon alstoni) is a rodent species from South America. It is found in Brazil, Colombia, Guyana, Suriname, and Venezuela, where it inhabits lowland savannas.

Other animals of the family Muridae

Alston’s cotton rat is a member of the Muridae, as are these animals:

Animals that share a litter size with Alston’s cotton rat

Those animals also give birth to 5 babies at once:

Animals with the same weight as a Alston’s cotton rat

What other animals weight around 55 grams (0.12 lbs)?