Beaver Fact of the Week: Nature’s Engineer

Beavers are often referred to as “nature’s engineers” or some variation on that sentiment due to their industrious dam building.

Beavers typically dam forested streams and rivers so they have ready access to building materials and food (which is wood and bark for both purposes). Beavers use river cobbles, sand, mud, and other sediments as “cement” to fortify their wood-based dams. The pond or lake that forms upstream of the dam provides a place to build their lodge and protection from terrestrial predators.

A beaver,
A beaver, “nature’s engineer,” hard at work building a dam.

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