Litter Size

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

How many baby Tome’s spiny rats are in a litter?

A Tome’s spiny rat (Proechimys semispinosus) 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 65 days as a fetus before they are released into the wild. Upon birth, they weight 26 grams (0.06 lbs) and measure 19.1 cm (0′ 8″). They are a member of the Echimyidae family (genus: Proechimys). An adult Tome’s spiny rat grows up to a size of 22.9 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 Tome's spiny rat is 2

Tome’s spiny rat (Proechimys semispinosus), also known as Tomes’ spiny rat or the Central American spiny rat, is a species of spiny rat distributed from Honduras to Ecuador. The IUCN has assessed its conservation status as being of “least concern”.

Other animals of the family Echimyidae

Tome’s spiny rat is a member of the Echimyidae, as are these animals:

Animals that share a litter size with Tome’s spiny rat

Those animals also give birth to 2 babies at once:

Animals that get as old as a Tome’s spiny rat

Other animals that usually reach the age of 2.58 years:

Animals with the same weight as a Tome’s spiny rat

What other animals weight around 355 grams (0.78 lbs)?

Animals with the same size as a Tome’s spiny rat

Also reaching around 22.9 cm (0′ 10″) in size do these animals: