After sampling grizzly bear hair using an elaborate salmon-gut contraption, Scientist Chris Darimon makes a fascinating discovery about the grizzly's eating habits.

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How Nature Works

Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

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