S32 Ep11: How Beavers Build Dams

Aired: 5/14/2014 | 0:02:32 | Clip
Beavers are devoted to their work as dam builders and they are born equipped and ready for the job. Leave it to Beavers 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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