Why do beavers build dams?

Why do beavers build dams?

Why do beavers build dams?

A beaver stands on its dam. (Image credit: Troy Harrison via Getty Images)

Beavers are known for building dams, which the animals build from trees and branches that they cut with their powerful front teeth. according to the National Park Service (opens in new tab). The rodents also use grass, rocks, and mud to reinforce these structures.

But why do American beavers (Castor canadensis) build dams? Do you live in it?

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