1. おすじか   octopus   hedgehog   stag   polar bear   Hint Half-n-half Clue   2. れいよう   antelope   hedgehog   toad   ox   Half-n-half Clue   3. こうもり   whale   bat   panther   octopus   Half-n-half Clue   4. かば   otter   octopus   hippopotamus   bat   Half-n-half Clue   5. いるか   whale   stag   dolphin   rhinoceros   Half-n-half Clue   6. くじら   toad   whale   dolphin   hippopotamus   Half-n-half Clue   7. おすうし   dolphin   toad   ox   hippopotamus   Half-n-half Clue