I just saw a video of a beaver in rehab building a dam at the front door of a house. What is it about their instincts/psyche that makes them want to build dams of all things?
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Not an answer, but relavent information: I watched a PBS documentary a few years ago where Canadian wildlife managers were using boomboxes that played the sound of running water to trick the beavers into building away from sensitive culverts. The beavers had been blocking culverts in Ontario and causing road flooding/damage. It seems that merely the *sound* of running water is enough to trigger the “build a dam, quick!” instinct.
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