Animal Size

Mountain beaver size: How big do they get?

How big does a Mountain beaver get? Here is an overview over the average adult age:

A grown Mountain beaver (Aplodontia rufa) reaches an average size of 30.7 cm (1′ 1″).

When born, they have an average size of 0 cm (0′ 0″). During their lifetime of about 10 years, they grow from 23 grams (0.05 lbs) to 806 grams (1.78 lbs). Talking about reproduction, Mountain beavers have 2 babies about 1 times per year. The Mountain beaver (genus: Aplodontia) is a member of the family Aplodontidae.

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 average adult size of a Mountain beaver is  (1' 1

The mountain beaver (Aplodontia rufa) is a North American rodent. It is the only living member of its genus, Aplodontia, and family, Aplodontiidae. It should not be confused with true North American and Eurasian beavers, to which it is not closely related.

Animals with the same size as a Mountain beaver

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Mountain beaver:

Animals with the same litter size as a Mountain beaver

Here is a list of animals that have the same number of babies per litter (2) as a Mountain beaver:

Animals with the same life expectancy as a Mountain beaver

Completely different animals, but becoming as old as a Mountain beaver:

Animals with the same weight as a Mountain beaver

As a comparison, here are some other animals that weight as much as the Aplodontia rufa: