What is the maximal age a North American beaver reaches?
An adult North American beaver (Castor canadensis) usually gets as old as 15 years.
North American beavers are around 111 days in the womb of their mother. When born, they weight 415 grams (0.91 lbs) and measure 1.7 cm (0′ 1″). As a member of the Castoridae family (genus: Castor), a North American beaver caries out around 3 little ones per pregnancy, which happens around 1 times a year. Fully grown, they reach a bodylength of 75.7 cm (2′ 6″).
As a reference: Usually, humans get as old as 100 years, with the average being around 75 years. After being carried in the belly of their mother for 280 days (40 weeks), they grow to an average size of 1.65m (5′ 5″) and weight in at 62 kg (137 lbs), which is obviously highly individual.
The North American beaver (Castor canadensis) is one of two extant beaver species (the other being the Eurasian beaver, Castor fiber). It is native to North America and introduced in South America (Patagonia) and Europe (primarily Finland and Karelia). In the United States and Canada, the species is often referred to simply as “beaver”, though this causes some confusion because another distantly related rodent, Aplodontia rufa, is often called the “mountain beaver”. Other vernacular names, including American beaver and Canadian beaver, distinguish this species from the other extant beaver species, Castor fiber, which is native to Eurasia. The North American beaver is an official animal symbol of Canada and is the official state mammal of Oregon.
Animals of the same family as a North American beaver
Not really brothers and sisters, but from the same biological family (Castoridae):
- Eurasian beaver becoming 25 years old
Animals that reach the same age as North American beaver
With an average age of 15 years, North American beaver are in good companionship of the following animals:
- Microcebus coquereli usually reaching 15.25 years
- North American porcupine usually reaching 18 years
- Gray-bellied night monkey usually reaching 18 years
- White-tailed mongoose usually reaching 12 years
- Dhole usually reaching 16 years
- Coypu usually reaching 12 years
- Javan warty pig usually reaching 14 years
- Giant armadillo usually reaching 15 years
- Jungle cat usually reaching 12 years
- Beira (antelope) usually reaching 14 years
Animals with the same number of babies North American beaver
The same number of babies at once (3) are born by:
- Mountain pygmy possum
- Fat mouse
- Prairie vole
- Striped hog-nosed skunk
- Pyrenean desman
- Kivu long-haired shrew
- Southwestern water vole
- Insular vole
- Abrothrix longipilis
- Long-nosed dasyure
Weighting as much as North American beaver
A fully grown North American beaver reaches around 18.11 kg (39.93 lbs). So do these animals:
- Chacma baboon weighting 17.73 kilos (39.09 lbs) on average
- Black duiker weighting 19 kilos (41.89 lbs) on average
- Pygmy brocket weighting 16.5 kilos (36.38 lbs) on average
- Chinkara weighting 18.91 kilos (41.69 lbs) on average
- Saudi gazelle weighting 16 kilos (35.27 lbs) on average
- Gray brocket weighting 16.63 kilos (36.66 lbs) on average
- Black wallaroo weighting 17 kilos (37.48 lbs) on average
- Mérida brocket weighting 16.5 kilos (36.38 lbs) on average
- Red brocket weighting 20.42 kilos (45.02 lbs) on average
- Four-horned antelope weighting 19.19 kilos (42.31 lbs) on average
Animals as big as a North American beaver
Those animals grow as big as a North American beaver:
- Sharpe’s grysbok with 67.9 cm (2′ 3″)
- Golden snub-nosed monkey with 64.7 cm (2′ 2″)
- Thomson’s gazelle with 88.5 cm (2′ 11″)
- Water chevrotain with 75 cm (2′ 6″)
- Tenkile with 61.6 cm (2′ 1″)
- Fossa (animal) with 72.7 cm (2′ 5″)
- Masked palm civet with 63.4 cm (2′ 1″)
- Golden jackal with 83 cm (2′ 9″)
- Red-shanked douc with 61.7 cm (2′ 1″)
- Red forest duiker with 78.7 cm (2′ 7″)