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What is a beaver?
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A large aquatic rodent of the genus Castor, having thick brown fur, webbed hind feet, a broad flat tail, and sharp incisors adapted for gnawing bark, felling trees…, and constructing dams and underwater lodges..
Beavers sometimes build dams to create lakes, slowing the flow of water and so changing their habitat. They also create lodges to live in. (MORE)
