North American Beaver

Collection of scaled drawings of the North American Beaver in various standing poses

Scientifically known as Castor canadensis and known best for its dam building, the North American Beaver is a semi-aquatic rodent physically distinguished by its broad, flat tail. It is identified as the largest rodent in North America and the second largest in the world just behind the capybara.

The purpose of dam building is to create a deep pond in which the beaver can establish its home. The dam is constructed across streams and consists of a pile of sticks with underwater entrances as the beaver is a skillful swimmer. The home or burrow is then made out of sticks and twigs as well.

Series of side elevation illustrations of the North American Beaver sitting

North American Beavers have a height of 14.2”-16.9” (36-43 cm), body length between 29”-35” (74-89 cm), and an overall weight in the range of 25-75 lb (11.3-34 kg). The tail length of a North American Beaver is 7.9”-13.8” (20-35 cm). North American Beavers have a typical lifespan of 10-15 years in the wild and up to 15-25 years in captivity.

Details

*Under Development*

Height: 
14.2”-16.9” | 36-43 cm
Width:
Depth:
Length:
29”-35” | 74-89 cm
:
:
Weight:
25-75 lb | 11.3-34 kg
Tail Length:
7.9”-13.8” | 20-35 cm
Scientific Name:
Castor canadensis
Lifespan:
10-15 years (wild); 15-25 years (captivity)

Properties

Drawings include:

North American Beaver side elevation (standing), front (standing), side (sitting), back (sitting)

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Rodents are classified by a single pair of continuously growing incisors in both their upper and lower jaws; the length of their incisors are maintained by gnawing, which is how they eat. The diet of Rodents usually consists of seeds and plants, but some species do have more varied diets.

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Common Rat
1-2 years (wild); 2-3 years (captivity)
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Norway Lemming
1-2 years (wild); 2-3 years (captivity)
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House Mouse
1-2 years (wild); 2-5 years (captivity)
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Common Degu
1-4 years (wild); 5-9 years (captivity)
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Muskrat
2-4 years (wild); up to 10 years (captivity)
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Nutria | Coypu
4-7 years (wild); up to 12 years (captivity)
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Capybara
7-10 years (wild); 10-15 years (captivity)
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Lowland Paca
Up to 12 years (wild); 12-16 years (captivity)
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Eastern Gray Squirrel
6-12 years (wild); up to 20 years (captivity)
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Yellow-Bellied Marmot
12-15 years (wild); up to 21 years (captivity)
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