Litter Size

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

How many baby Oldfield mouses are in a litter?

A Oldfield mouse (Peromyscus polionotus) usually gives birth to around 3 babies.With 2 litters per year, that sums up to a yearly offspring of 6 babies.

Each of those little ones spend around 23 days as a fetus before they are released into the wild. Upon birth, they weight 1 grams (0 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Muridae family (genus: Peromyscus). An adult Oldfield mouse grows up to a size of 12.4 cm (0′ 5″).

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 Oldfield mouse is 3

The oldfield mouse or beach mouse (Peromyscus polionotus) is a nocturnal species of rodent in the family Cricetidae. It is found in the southeastern United States on sandy beaches, in corn and cotton fields, and in hedge rows and open timber tracts. Coloration varies with geographic location; inland populations are generally fawn-colored, while coastal populations are lighter or white. The mouse eats seeds, fruits, and occasionally insects, and lives and raises its three to four young (at a time) in a simple burrow. Weaning occurs at 20–25 days, and females may mate at 30 days of age. Predators are those that prey on small mammals. One individual lived in captivity for about five years. The mouse is of least concern to conservationists because it is abundant and widespread, and no major threats exist for the species as a whole, but several subspecies with small distributions are endangered or even extinct.

Other animals of the family Muridae

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

Animals that share a litter size with Oldfield mouse

Those animals also give birth to 3 babies at once:

Animals with the same weight as a Oldfield mouse

What other animals weight around 14 grams (0.03 lbs)?