THE SMALLER EARS AND NOSES OF ARCTIC WOLVES HELP THEM KEEP WARM IN SUB-ZERO TEMPERATURES, THE OUTSIDE LAYER OF THEIR THICK COAT IS WATERPROOF. ARCTIC WOLVES HAVE BEEN KNOWN TO USE THE SAME DEN SITES GENERATION AFTER GENERATION, POSSIBLY OVER CENTURIES. IMAGE:  ©ERICLEFRANCAIS⎮DEAMSTIME.COM
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