Cushion growth
          
        
        
          It’s not just animals
        
        
          that need to wrap up
        
        
          warm – plants do too.
        
        
          Purple saxifrage has lots
        
        
          of tiny, overlapping
        
        
          leaves that completely
        
        
          cover the short stems.
        
        
          Become
        
        
          an expert
        
        
          
            8-9
          
        
        
          The Arctic
        
        
          
            56-57
          
        
        
          Antarctica
        
        
          
            170-171
          
        
        
          Desert
        
        
          regions
        
        
          The polar bear.
        
        
          
            Polar regions
          
        
        
          
            159
          
        
        
          
            One big cover up
          
        
        
          Many polar animals have thick coats.
        
        
          The snowy owl has feathers on its
        
        
          body that grow long enough to cover
        
        
          its legs and its bill.
        
        
          
            A fine fur coat
          
        
        
          The Arctic fox’s luxurious
        
        
          fur even covers the soles of
        
        
          its feet. This fox is dark in
        
        
          the summer, and white in
        
        
          the winter. In the summer it
        
        
          is very busy, collecting and
        
        
          storing food for the winter.
        
        
          The snowy owl’s talons
        
        
          are perfectly shaped for
        
        
          gripping a lemming.
        
        
          Purple saxifrage is one of the first Arctic plants
        
        
          to flower when the snow melts in June.
        
        
          Lemmings cope with the cold by staying in
        
        
          tunnels below the snow, where they hunt for
        
        
          plant roots to nibble. If they emerge, they may
        
        
          well be caught by a passing snowy owl.
        
        
          P
        
        
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            Snowy
          
        
        
          
            owl