1. walrus   antílope   yegua   morsa   burro, asno   Hint Half-n-half Clue   2. seal   murciélago   buey   foca   pantera   Half-n-half Clue   3. rhinoceros   rinoceronte   liebre   hipopótamo   hiena   Half-n-half Clue   4. whale   rinoceronte   tiburón   ballena   ciervo   Half-n-half Clue   5. penguin   pulpo   pingüino   buldog   ciervo   Half-n-half Clue   6. hedgehog   castor   erizo   canguro   oso polar   Half-n-half Clue   7. bat   burro, asno   koala   canguro   murciélago   Half-n-half Clue