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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All animals are “hardwired” to build nests of some sort. Birds prefer to build nests in trees, some animals prefer to dig burrows into the ground, and so on. Beavers like to collect piles of wood and build a surface-and-underwater structure like that.
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