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Litter Size

How many babies does a White-ankled mouse have at once? (litter size)

How many baby White-ankled mouses are in a litter?

A White-ankled mouse (Peromyscus pectoralis) usually gives birth to around 3 babies.With 1 litters per year, that sums up to a yearly offspring of 3 babies.

Each of those little ones spend around 23 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 White-ankled 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 white-ankled mouse (Peromyscus pectoralis) is a species of rodent in the family Cricetidae.It is found in Mexico and in New Mexico, Oklahoma and Texas in the United States.The white-ankled mouse is commonly found in coexistence with the Brush mouse and Texas mouse (P. boylii and P. attaweri). Often, the sympatric overlap in characteristics between these species makes it difficult to identify a specific species. The most distinguishing feature of the white-ankled mouse, and the one most used to identify the species, is the baculum of males (Hooper 1958). The tip of the white-ankled mouse’s baculum is long and cartilaginous, whereas the tip of the Brush and Texas mouse is short and rounded (Clark 1952 and Hooper 1958).

Other animals of the family Muridae

White-ankled mouse is a member of the Muridae, as are these animals:

Animals that share a litter size with White-ankled mouse

Those animals also give birth to 3 babies at once:

Animals with the same weight as a White-ankled mouse

What other animals weight around 38 grams (0.08 lbs)?