Canada | 1993 | Dollar | Beaver

 

Beavers



Beavers (Castor canadensis and Castor fiber) are large, mainly nocturnal, semi-aquatic rodents known for constructing dams, canals, and lodges. Once numbering over 60 million in North America, their populations declined sharply due to hunting and conflicts with human land use. Despite only two living species today, beavers have a long fossil history and once included several giant forms. Using their strong incisors, beavers cut trees for food and building, creating ponds in which they construct their lodges and store winter food. They signal danger by tail-slapping, are excellent swimmers, and can remain underwater for up to 15 minutes. Herbivorous, they favor a variety of tree species and aquatic plants. Adapted with webbed feet, a broad tail, and continuously growing teeth, beavers may exceed 25 kg in weight and can live up to 24 years in the wild.


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