Litter Size

How many babies does a Guaira spiny rat have at once? (litter size)

How many baby Guaira spiny rats are in a litter?

A Guaira spiny rat (Proechimys guairae) usually gives birth to around 2 babies.With 4 litters per year, that sums up to a yearly offspring of 8 babies.

Each of those little ones spend around 62 days as a fetus before they are released into the wild. Upon birth, they weight 25 grams (0.06 lbs) and measure 19.1 cm (0′ 8″). They are a member of the Echimyidae family (genus: Proechimys). An adult Guaira spiny rat grows up to a size of 19.7 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.

The Guaira spiny-rat (Proechimys guairae) is a species of rodent in the family Echimyidae. It is endemic to Venezuela. It is commonly referred to as ‘casiragua’ to avoid confusion with true rats (Muroidea)

Other animals of the family Echimyidae

Guaira spiny rat is a member of the Echimyidae, as are these animals:

Animals that share a litter size with Guaira spiny rat

Those animals also give birth to 2 babies at once:

Animals with the same weight as a Guaira spiny rat

What other animals weight around 349 grams (0.77 lbs)?