How Beavers Build Dams | Leave it to Beavers | PBS

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2014-05-11 14:00:02 קטגוריה: בידור מאת: PBS
Watch the latest episodes of Nature: "Leave it to Beavers" on NATURE tells the story of beavers in North America -- their history, their near extinction, and their current comeback as modern day eco-heroes.

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