1. polar bear   urso polar   coala   rinoceronte   golfinho   Hint Half-n-half Clue   2. hippopotamus   hipopótamo   ouriço   leoa   castor   Half-n-half Clue   3. jackal   rinoceronte   foca   sapo   chacal   Half-n-half Clue   4. ox   chita, leopardo caçador   antílope   boi   buldogue   Half-n-half Clue   5. hyena   boi   cervo   sapo   hiena   Half-n-half Clue   6. koala   baleia   coala   morcego   urso polar   Half-n-half Clue   7. porcupine   morcego   canguru   baleia   porco espinho   Half-n-half Clue