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Small mammals

North American beaver

North American beaver · Castor canadensis

North American beaver
Biber sitzt am Ufer im Schilf, nasses Fell und Seitenansicht bei Tageslicht.

With powerful teeth and great ingenuity, the North American beaver reshapes entire river landscapes while usually remaining out of sight.

Fact file

Size
Weighs up to 30 kg and is 90 to 120 cm long, with a powerful tail around 35 cm
Males and females
Males and females are hardly distinguishable by appearance
Sounds
Tail slap as a warning and otherwise quiet grunting sounds
Diet
Bark, twigs, aquatic plants, herbs
Offspring
Four to six young per litter in late spring

How to identify North American beaver

The North American beaver has a dense, water-repellent brown coat that often shines with a reddish hue near rivers. Its strong gnawing teeth are a striking orange colour and protrude slightly. A particularly distinctive feature is the broad, flattened tail, covered in scales and used for swimming and as a warning signal.

With its stocky, compact body, the North American beaver looks in the water like a dark, moving block. Adults reach a length of 90 to 120 cm including the tail and a weight of up to 30 kilograms. From a distance you can make out the short legs and the gently rounded profile of the back.

More in the app

With Wildful Stories+ you also get in the app:

  • general viewing tips
  • 2 places where you can see North American beaver

Where North American beaver live

Discover North American beaver on your trip.

The app shows you where and when to see wildlife along your route.

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