#lemming  any of various short-tailed furry-footed rodents of circumpolar distribution
  supertype:  rodent__gnawer__gnawing_animal__gnawinganimal  relatively small gnawing animals having a single pair of constantly growing incisor teeth specialized for gnawing
  member of:  family_Cricetidae
  subtype:  European_lemming__Lemmus_lemmus  notable for mass migrations even into the sea where many drown
  subtype:  brown_lemming__brownlemming__Lemmus_trimucronatus  of northwestern Canada and Alaska
  subtype:  gray_lemming__red-backed_lemming  Old World lemming
  subtype:  pied_lemming  North American lemming having a white winter coat and some claws much enlarged
     subtype:  Hudson_bay_collared_lemming__Dicrostonyx_hudsonius  of northern Canada
  subtype:  southern_bog_lemming__Synaptomys_cooperi  of low bogs and meadows of northeastern and central United States and southern Canada
  subtype:  northern_bog_lemming__Synaptomys_borealis  of wet alpine and subalpine meadows of Canada and Alaska

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