Scientists in the field.

The polar bear research project -- A conversation with Dr. Steven Amstrup about polar bear research -- The 2008 threatened species designation -- A polar bear capture -- Bioelectrical impedance analysis (BIA) -- A conversation with Dr. Steven Amstrup about capture-recapture estimates and polar bears -- Another capture -- A conversation with Dr. Steven Amstrup about radio collars and polar nations -- Recording information -- An overview of samples taken in the field and what they are used for -- Searching the bone pile -- A final conversation with Dr. Steven Amstrup about climate change and the future of polar bears -- Glossary -- Polar bear field guide

Young readers can follow scientists as they scan the Alaskan wilderness for polar bears

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