From flying squirrels to grizzly bears, and from torpid turtles to insects with antifreeze, the animal kingdom relies on some staggering evolutionary innovations to survive winter. Unlike their human counterparts, who must alter the environment to accommodate physical limitations, animals are adaptable to an amazing range of conditions.
Bernd Heinrich, is a professor emeritus in the biology department at the University of Vermont and is the author of a number of books about nature writing and biology. Heinrich has made major contributions to the study of insect physiology and behavior, as well as bird behavior.
From the Archives: This live interview was recorded on May 2 2003 on the nationally syndicated radio program, hosted by Laura Lee . See more at www.lauralee.com