結果 : why do beavers build dams food
4:45

Why are beavers obsessed with dams? - Glynnis Hood

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Why Do Beavers Build Dams? Nature's Engineers (Wildlife Documentary) | Natural Kingdom | Real Wild

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How Beavers Evolved to Build Dams

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Beaver Lodge Construction Squad | Attenborough | BBC Earth

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01 L Beaver Ecology

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Why do beavers build dams? | Nightly News: Kids Edition

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How Do Beavers Build A Dam | BBC

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