1. hedgehog   sapo   morsa   erizo   foca   Hint Half-n-half Clue   2. stag   puerco espín   koala   ciervo   reno   Half-n-half Clue   3. bat   liebre   sapo   pantera   murciélago   Half-n-half Clue   4. beaver   puerco espín   liebre   castor   antílope   Half-n-half Clue   5. toad   rinoceronte   buey   sapo   yegua   Half-n-half Clue   6. walrus   antílope   morsa   oso polar   chimpancé   Half-n-half Clue   7. kangaroo   canguro   sapo   reno   liebre   Half-n-half Clue