글의 내용과 가장 일치하는 것은? Polar bears are mammals that belong to the bear family. They are one of the largest animals in the Arctic and one of the largest meat-eating animals in the world. They can weigh up to 680 kilograms and can be up to 3.4 meters tall. Polar bears have thick, oily, and water-repellent fur. This fur covers their body, including the spaces between their pads on their paws. Their white fur helps them blend in with the snow and ice. They use only their broad front paws to swim through the water. As for their food, polar bears hunt and eat seals from time to time. They also eat fish, grass, or even dead animals and stranded whales.