Polar bears are the largest carnivores on Earth today, reaching lengths of over 2.5 meters and weigh of up to 680 kilograms.
Polar bears have an amazing sense of smell, which they use to track their favourite food, seals. They can sniff out prey from up to 16 kilometres away.
Polar bears are strong swimmers and can travel long distances in the water.
Polar bears have jet-black skin beneath their thick fur, which helps them stay warm by absorbing sunlight.
Scientists can collect polar bear DNA from their footprints, which lets them study these animals without bothering them.
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