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 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:
- Thomas’s flying squirrel with a size of 34 cm (1′ 2″)
- Indonesian mountain weasel with a size of 30.9 cm (1′ 1″)
- Gray-bellied night monkey with a size of 30.5 cm (1′ 1″)
- Moluccan flying fox with a size of 25.3 cm (0′ 10″)
- Dinagat bushy-tailed cloud rat with a size of 26.5 cm (0′ 11″)
- Poncelet’s giant rat with a size of 27 cm (0′ 11″)
- Javan mongoose with a size of 27.5 cm (0′ 11″)
- White-tailed prairie dog with a size of 30.7 cm (1′ 1″)
- Black flying fox with a size of 25.4 cm (0′ 10″)
- Banded mongoose with a size of 36.3 cm (1′ 3″)
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:
- Texas kangaroo rat
- Red-bellied mosaic-tailed rat
- Southern Plains woodrat
- Black-tufted marmoset
- Red-handed tamarin
- American marten
- Phillips’s kangaroo rat
- Saiga antelope
- Leopard cat
- White-footed tamarin
Animals with the same life expectancy as a Mountain beaver
Completely different animals, but becoming as old as a Mountain beaver:
- Black giant squirrel with an average maximal age of 10.08 years
- Asian small-clawed otter with an average maximal age of 10.08 years
- Malayan civet with an average maximal age of 12 years
- Least weasel with an average maximal age of 10 years
- Myotis vivesi with an average maximal age of 10 years
- Greater bamboo lemur with an average maximal age of 12 years
- Ord’s kangaroo rat with an average maximal age of 9.75 years
- Nathusius’s pipistrelle with an average maximal age of 8 years
- California leaf-nosed bat with an average maximal age of 10.33 years
- Greater fairy armadillo with an average maximal age of 12 years
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:
- Tres Marias rabbit bringing 964 grams to the scale
- Yellow-throated squirrel bringing 803 grams to the scale
- Screaming hairy armadillo bringing 930 grams to the scale
- White-tailed prairie dog bringing 964 grams to the scale
- Mexican prairie dog bringing 900 grams to the scale
- Hispaniolan solenodon bringing 893 grams to the scale
- Aotus infulatus bringing 800 grams to the scale
- Spix’s night monkey bringing 873 grams to the scale
- Mountain cottontail bringing 803 grams to the scale
- White-eared titi bringing 898 grams to the scale