Litter Size

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

How many baby California mouses are in a litter?

A California mouse (Peromyscus californicus) usually gives birth to around 1 babies.With 4 litters per year, that sums up to a yearly offspring of 4 babies.

Each of those little ones spend around 32 days as a fetus before they are released into the wild. Upon birth, they weight 4 grams (0.01 lbs) and measure 1.3 cm (0′ 1″). They are a member of the Muridae family (genus: Peromyscus). An adult California mouse grows up to a size of 11.6 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 California mouse is 1

The California mouse (Peromyscus californicus) is a species of rodent in the subfamily Neotominae in the family Cricetidae. It is the only species in the Peromyscus californicus species group. It is found in northwestern Mexico and central to southern California. It is the largest Peromyscus species in the United States.While most rodents are polygamous, the California mouse is monogamous and forms pair bonds, making it a model organism for researchers studying the genetics and neurobiology of partner fidelity and paternal care.

Other animals of the family Muridae

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

Animals that share a litter size with California mouse

Those animals also give birth to 1 babies at once:

Animals with the same weight as a California mouse

What other animals weight around 42 grams (0.09 lbs)?

Animals with the same size as a California mouse

Also reaching around 11.6 cm (0′ 5″) in size do these animals: