A polar bear is mostly simply ringed seals, but may also eat moarded seals,harp seals, and harbord seals but it is basicly mostly about seals since in artica there is not many organizem about seals bacterias other mamiferce and other and it is realy hard for a polar bear to find some thing since 5 pousent of there huntes are acculy succsesful but the 95 poursent is not whitch is crazy.