1. dolphin   buey   delfín   hipopótamo   leona   Hint Half-n-half Clue   2. shark   burro, asno   tiburón   hiena   oso polar   Half-n-half Clue   3. hyena   tiburón   morsa   hiena   antílope   Half-n-half Clue   4. kangaroo   canguro   gorila   sapo   buldog   Half-n-half Clue   5. whale   burro, asno   antílope   koala   ballena   Half-n-half Clue   6. stag   leona   ciervo   koala   reno   Half-n-half Clue   7. seal   gorila   liebre   hiena   foca   Half-n-half Clue