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Deer in two feet of snow. Photo: Gary Lee, from our Photo of the Day archive.
Feb 04, 2021
Some mammals shiver their way through the winter but it s a last resort. How do they keep warm? Beavers huddle together in lodges, deer grow a winter coat with heat-trapping airspaces, and some animals actually reduce their size as their metabolic rate rises to generate more heat.
Martha Foley and Dr. Curt Stager talk about the many ways mammals survive the winter.
Natural SelectionsMammals in Winter
Martha Foley: Animals in winter, some of them hibernate, we re not going to talk about those right now. What about the ones who are still active in winter? How do they do it? It s cold.
It s the reason opposites attract and doorknobs shock, why lightning strikes, and the way bumblebees find the sweet spot in flowers. Whenever an object has more or fewer electrons than its neighbor, there is the potential for static discharge.
Martha.