Litter Size

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

How many baby Guyenne spiny rats are in a litter?

A Guyenne spiny rat (Proechimys guyannensis) usually gives birth to around 2 babies.

Each of those little ones spend around 63 days as a fetus before they are released into the wild. Upon birth, they weight 24 grams (0.05 lbs) and measure 2.9 cm (0′ 2″). They are a member of the Echimyidae family (genus: Proechimys). An adult Guyenne spiny rat grows up to a size of 22 cm (0′ 9″).

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 Guyenne spiny-rat, Proechimys guyannensis, or Cayenne spiny rat, is a spiny rat species from South America. It is found in Brazil, Colombia, French Guiana, Guyana, Surinam and Venezuela.

Other animals of the family Echimyidae

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

Animals that share a litter size with Guyenne spiny rat

Those animals also give birth to 2 babies at once:

Animals that get as old as a Guyenne spiny rat

Other animals that usually reach the age of 4.75 years:

Animals with the same weight as a Guyenne spiny rat

What other animals weight around 314 grams (0.69 lbs)?

Animals with the same size as a Guyenne spiny rat

Also reaching around 22 cm (0′ 9″) in size do these animals: