Nature's own lumberjacks, American beavers fell large trees using nothing more than their strong front teeth. They then use the timber to build their famous dams and lodges. Ground-breaking infra-red filming for the Life of Mammals revealed that beavers willingly share their lodges, and even their food, with another rodent: the muskrat. The beaver's flattened and scaly tail is just one of a number of superb adaptations to their watery habitat. Not content with being North America's biggest rodent, the American beaver is also the world's third largest, out-sized only by its European cousin and by the capybara.
Did you know?
Canada is home to the world's largest beaver dam and at 850m long it can be seen from space.
Scientific name: Castor canadensis
The North American beaver can be found in a number of locations including: North America. Find out more about these places and what else lives there.
The following habitats are found across the North American beaver distribution range. Find out more about these environments, what it takes to live there and what else inhabits them.
Discover what these behaviours are and how different plants and animals use them.
Additional data source: Animal Diversity Web
Population trend: Stable
Year assessed: 2008
Classified by: IUCN 3.1