Marcia Roepke
North Woods Naturalist

North Woods Naturalist: Brown fat

Have you ever wondered why the first 30 and 40-degree days in the fall feel so much colder than a day with the same temperature in March? In this edition of North Woods Naturalist, Chel Anderson explains how brown fat helps to keep us warm in the winter.

North Woods Naturalist is supported in part by funding from the Minnesota Arts and Cultural Heritage Fund.