How does a hummingbird survive in subzero winter temperatures? Why endure them at all? Author T.C. Boyle couldn’t understand why the small bird would be anywhere near his mountain writing retreat, but he found the answer in Bernd Heinrich’s “Winter World.”

Depending on where you live, winter can be tough to get through.  It’s cold, it gets dark early, the weather’s messy.  Naturalist Bernd Heinrich shares some amazing stories about the ingenious ways animals survive winter.