Litter Size

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

How many baby San Lorenzo mouses are in a litter?

A San Lorenzo mouse (Peromyscus interparietalis) usually gives birth to around 2 babies.

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 San Lorenzo mouse grows up to a size of 9.8 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 San Lorenzo mouse (Peromyscus interparietalis) is a species of rodent in the family Cricetidae. It is endemic to Mexico, where it is found only from the islands of San Lorenzo Norte, San Lorenzo Sur, and Salsipuedes off the east coast of Baja California. The species is threatened by predation by feral and domestic cats, particularly on San Lorenzo Sur.

Other animals of the family Muridae

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

Animals that share a litter size with San Lorenzo mouse

Those animals also give birth to 2 babies at once: