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So I found another beaver dam down at the Whitemud Creek. That makes it two dams that have sprung up in the last month. This one is tucked away in a secluded part of the creek and is smaller than the first one. It is large enough though to dam up the water upstream, allowing only a small stream to flow over the crest. It is made up of smaller branches and twigs, but is remarkably efficient in blocking the flow of the water. It is difficult to imagine how one would successfully build a dam made up of branches in a flowing creek. There clearly must be some beaver science going on here. When people refer to beavers as engineers, they go that part right.
May the curiosity be with you. This is from “The Birds are Calling” blog (www.thebirdsarecalling.com). Copyright Mario Pineda.