Using Salmon Guts to Study Bears _ How Nature Works _ BBC Earth

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

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.