How do animals survive winter?
Winter's Secret Tricks
How do animals survive winter?

Winter's coming. The air turns cold, food disappears under snow, and yet — come spring — the woods are full of animals again. Where did they all go? How did they make it through months of freezing nights and empty branches?
Some animals just leave. Birds fly thousands of miles south to places where it's still warm and bugs are still flying. Monarchs flutter to Mexico. Arctic terns fly all the way to Antarctica and back — the longest commute on Earth. Migration is the simplest plan: if winter's coming to your address, change your address.
