1. porcupine   ciervo   sciacallo   lontra   porcospino   Hint Half-n-half Clue   2. otter   porcospino   lontra   bisonte   pantera   Half-n-half Clue   3. seal   delfino   tasso   foca   ariete   Half-n-half Clue   4. ox   delfino   tricheco   riccio   bue   Half-n-half Clue   5. rhinoceros   pipistrello   rinoceronte   bulldog   pescecane   Half-n-half Clue   6. panda   leone di mare   tasso   panda   polpo   Half-n-half Clue   7. bison   porcospino   gorilla   bisonte   pescecane   Half-n-half Clue