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Polar Bear Lectures in Sociology 190

By Rena Mei
Professor Nicholas A. Christakis, a Pforzheimer House Master, wears his house spirit by lecturing in a polar bear costume in Sociology 190 on Wednesday.
Professor Nicholas A. Christakis, a Pforzheimer House Master, wears his house spirit by lecturing in a polar bear costume in Sociology 190 on Wednesday.

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