1. ノウサギ   panther   koala   hare   cheetah   Hint Half-n-half Clue   2. ヤマアラシ   gorilla   toad   porcupine   otter   Half-n-half Clue   3. ビーバー   seal   rhinoceros   beaver   antelope   Half-n-half Clue   4. セイウチ   walrus   rhinoceros   cheetah   hare   Half-n-half Clue   5. サイ   reindeer   cheetah   bison   rhinoceros   Half-n-half Clue   6. ヒキガエル   hedgehog   whale   mare   toad   Half-n-half Clue   7. ペンギン.   otter   penguin   hippopotamus   jackal   Half-n-half Clue