Litter Size

How many babies does a Merriam’s pocket mouse have at once? (litter size)

How many baby Merriam’s pocket mouses are in a litter?

A Merriam’s pocket mouse (Perognathus merriami) usually gives birth to around 4 babies.

Upon birth, they weight 1 grams (0 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Heteromyidae family (genus: Perognathus). An adult Merriam’s pocket mouse grows up to a size of 5.8 cm (0′ 3″).

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.

Merriam’s pocket mouse (Perognathus merriami) is a species of rodent in the family Heteromyidae. It is found in northeast Mexico and New Mexico, Oklahoma and Texas in the United States. Its habitat is shortgrass prairie, desert areas with scrub and arid shrubland. The species is named to honor Clinton Hart Merriam, a biologist who first described several other members of the genus Perognathus, and first elucidated the principle of a “life zone” as a means of characterizing ecological areas with similar plant and animal communities.

Other animals of the family Heteromyidae

Merriam’s pocket mouse is a member of the Heteromyidae, as are these animals:

Animals that share a litter size with Merriam’s pocket mouse

Those animals also give birth to 4 babies at once:

Animals that get as old as a Merriam’s pocket mouse

Other animals that usually reach the age of 2.5 years:

Animals with the same weight as a Merriam’s pocket mouse

What other animals weight around 6 grams (0.01 lbs)?

Animals with the same size as a Merriam’s pocket mouse

Also reaching around 5.8 cm (0′ 3″) in size do these animals: