Litter Size

How many babies does a Southwestern water vole have at once? (litter size)

How many baby Southwestern water voles are in a litter?

A Southwestern water vole (Arvicola sapidus) usually gives birth to around 3 babies.

Upon birth, they weight 4 grams (0.01 lbs) and measure 5.8 cm (0′ 3″). They are a member of the Muridae family (genus: Arvicola). An adult Southwestern water vole grows up to a size of 9.5 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 average litter size of a Southwestern water vole is 3

The southwestern water vole (Arvicola sapidus), also called southern water vole, is a large amphibious vole native to most of France and south-westwards through Spain and Portugal. It is listed on the IUCN Red List as vulnerable. Although historically considered to be a member of the same species as the European water vole, Musser and Carleton (2005) considered it distinct enough to warrant full species status. It is threatened for many of the same reasons as the northern water vole, and a campaign is currently underway to seek protection for the species, both at a national level and at European Union level.It was traditionally one of the main ingredients in the Valencian dish called paella.

Other animals of the family Muridae

Southwestern water vole is a member of the Muridae, as are these animals:

Animals that share a litter size with Southwestern water vole

Those animals also give birth to 3 babies at once:

Animals that get as old as a Southwestern water vole

Other animals that usually reach the age of 3.5 years:

Animals with the same weight as a Southwestern water vole

What other animals weight around 220 grams (0.49 lbs)?