Animal Size

New Britain water rat size: How big do they get?

How big does a New Britain water rat get? Here is an overview over the average adult age:

A grown New Britain water rat (Hydromys neobrittanicus) reaches an average size of 29.2 cm (1′ 0″).

When born, they have an average size of 0 cm (0′ 0″). The New Britain water rat (genus: Hydromys) is a member of the family Muridae.

As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.

The New Britain water rat (Hydromys neobritannicus) is a semiaquatic species of rodent in the family Muridae.Found only in Papua New Guinea, it is threatened by habitat loss.

Animals of the same family as a New Britain water rat

We found other animals of the Muridae family:

Animals with the same size as a New Britain water rat

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as New Britain water rat: