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# Long description

The temperature at different sites within and outside the fur of a mammal adapted to arctic life. The diagram is a cross-section through the skin, showing the layer of fur, the epidermis, inner dermis and the body tissues. Plotted on this cross-section are the temperatures measured at intervals from the tissue layer to the air above the fur. The range is from 38 degrees in the tissue layer to minus ten degrees in the air above the fur.