A beaver dam is a structure built by beavers using sticks, mud, and rocks to create a barrier in rivers or streams. This dam slows water flow, forming deep ponds that protect beavers from predators and serve as habitats. Beaver dams also benefit ecosystems by reducing erosion, improving water quality, and creating wetlands that support diverse wildlife. In this image, the beaver dam is established by willows (Salix sp.). The willow roots anchor the dam and add structural support.

Beaver Dam

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