POLAR BEARS HAVE THICK FUR TO KEEP THEM WARM

THESE BUTTER FLYS FLY WHEN THEY MIGRATE

THE BLUEBIRD FLIES SOUTH FOR THE WINTER

SOME ANIMALS DOLN'T MIGRATE IN WINTER

IT IS FRIGHTENING, OR SCARY FOR PENGUINS

WHEN MOOSE CROSS BUSY ROADS TO FIND FOOD

IT IS VERY HARD FOR ANIMALS TO FIND FOOD UNDER SNOW

THE LANDSCAPE CHANGES IN THE SPRING

A HERD OF CARIBOU MAKES A VERY LOUD THUNDEROUS

SALMON SWIMMING UPSTREAM TO LAY EGGS