Polar bears are the largest land carnivores. They can grow up to 10 feet long and weigh over 1,700 pounds. Polar bears have thick fur to keep them warm and hollow hairs that act like straws to keep them dry. They live in Arctic regions and hunt seals, which they eat to sustain their large bodies. Polar bears communicate through growls, roars, and body language to warn, play, or scold each other.