Animals in Winter Study Guide Test: Friday, January 22nd Migration is when an animal moves or flies to a warmer location. Hibernation is when an animal sleeps through the winter. Some animals that hibernate are bears, bats, squirrels, and frogs. Animals hibernate in the winter. Camouflage is when an animal’s fur changes color to protect itself from predators. People use coats, hats, mittens, gloves, and scarves to protect their bodies in winter weather. Winter is a season. During winter it gets dark earlier and the temperature is cold. When the temperature is 32 degrees, water freezes. We get snow when ice crystals join together and fall from the clouds. An evergreen is a tree that stays green all winter. A deciduous tree will most likely not have any leaves during the winter.