Litter Size

How many babies does a Tien Shan birch mouse have at once? (litter size)

How many baby Tien Shan birch mouses are in a litter?

A Tien Shan birch mouse (Sicista tianshanica) usually gives birth to around 4 babies.With 1 litters per year, that sums up to a yearly offspring of 4 babies.

Upon birth, they weight 24 grams (0.05 lbs) and measure 1.6 cm (0′ 1″). They are a member of the Dipodidae family (genus: Sicista). An adult Tien Shan birch mouse grows up to a size of 18.5 cm (0′ 8″).

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 Tien Shan birch mouse (Sicista tianshanica) is a species of rodent in the family Dipodidae. It is found in China, Kazakhstan and Kyrgyzstan.

Other animals of the family Dipodidae

Tien Shan birch mouse is a member of the Dipodidae, as are these animals:

Animals that share a litter size with Tien Shan birch mouse

Those animals also give birth to 4 babies at once: