Polar Bears Leave Messages in Their Footprints

If a polar bear tells you to talk to the hand, don’t be offended. The animals seem to communicate with each other through scent trails left by their paws. Their tracks tell a story to the other bears roaming their habitat, helping potential mates to find each other—as long as there’s habitat left, anyway.

As they crisscross the snowy Arctic, polar bears are usually alone. In other solitary bear species, animals leave messages for each other by rubbing their bodies or urine onto trees or r

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