Litter Size

How many babies does a Pinyon mouse have at once? (litter size)

How many baby Pinyon mouses are in a litter?

A Pinyon mouse (Peromyscus truei) usually gives birth to around 3 babies.With 3 litters per year, that sums up to a yearly offspring of 9 babies.

Each of those little ones spend around 32 days as a fetus before they are released into the wild. Upon birth, they weight 2 grams (0 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Muridae family (genus: Peromyscus). An adult Pinyon mouse grows up to a size of 10.1 cm (0′ 4″).

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 Pinyon mouse is 3

The pinyon mouse (Peromyscus truei) is native to the southwestern United States and Baja California in Mexico. These medium-sized mice are often distinguished by their relatively large ears. The range of this species extends from southern Oregon and Wyoming in the north, and extends south to roughly the U.S.-Mexico border, with a disjunct population designated as Peromyscus true comanche that occupies an area in the vicinity of Palo Duro Canyon in the Texas panhandle.

Other animals of the family Muridae

Pinyon mouse is a member of the Muridae, as are these animals:

Animals that share a litter size with Pinyon mouse

Those animals also give birth to 3 babies at once:

Animals with the same weight as a Pinyon mouse

What other animals weight around 27 grams (0.06 lbs)?