HOW DO LIZARDS STAY WARM IN CHILLY TEMPERATURES?

— Ashli, 8, CA Like most reptiles, lizards hibernate to keep away from cold weather. That means they spend the winter in an inactive, sleeping state so they don’t have to worry about the snow. They need to do this because they’re coldblooded, which means they have no way of keeping themselves warm when it’s cold outside. Underground, the temperatures are much higher so they can stay comfortable and safe.