Litter Size

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

How many baby New Holland mouses are in a litter?

A New Holland mouse (Pseudomys novaehollandiae) usually gives birth to around 4 babies.With 4 litters per year, that sums up to a yearly offspring of 16 babies.

Each of those little ones spend around 31 days as a fetus before they are released into the wild. Upon birth, they weight 1 grams (0 lbs) and measure 19.1 cm (0′ 8″). They are a member of the Muridae family (genus: Pseudomys). An adult New Holland mouse grows up to a size of 8.2 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 New Holland mouse is 4

The New Holland mouse (Pseudomys novaehollandiae) is a species of rodent in the family Muridae. It was first described by George Waterhouse in 1843. It vanished from view for over a century before its rediscovery in Ku-ring-gai Chase National Park north of Sydney in 1967. It is found only in south east Australia, within the states of New South Wales, Queensland, Victoria, and Tasmania.

Other animals of the family Muridae

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

Animals that share a litter size with New Holland mouse

Those animals also give birth to 4 babies at once:

Animals with the same weight as a New Holland mouse

What other animals weight around 16 grams (0.04 lbs)?

Animals with the same size as a New Holland mouse

Also reaching around 8.2 cm (0′ 4″) in size do these animals: