1. ox   buey   pingüino   panda, oso panda   koala   Hint Half-n-half Clue   2. polar bear   tiburón   koala   oso polar   liebre   Half-n-half Clue   3. octopus   leona   nutria   pulpo   yegua   Half-n-half Clue   4. hedgehog   sapo   panda, oso panda   erizo   foca   Half-n-half Clue   5. panda   foca   pulpo   panda, oso panda   yegua   Half-n-half Clue   6. hyena   burro, asno   gorila   hiena   chimpancé   Half-n-half Clue   7. rhinoceros   pantera   morsa   burro, asno   rinoceronte   Half-n-half Clue