1. rhinoceros    sai   chiitaa, chītā   reiyou, reiyō   hyou, hyō   Hint Half-n-half Clue   2. hippopotamus    osuhitsuji   kaba   kawauso   bison   Half-n-half Clue   3. bison    roba   anaguma   bison   seiuchi   Half-n-half Clue   4. cheetah    nezumi   iruka   chiitaa, chītā   gorira   Half-n-half Clue   5. shark    sai   harinezumi   koumori, kōmori   same   Half-n-half Clue   6. octopus    anaguma   osuushi, osūshi   tako   osuhitsuji   Half-n-half Clue   7. beaver    itachi   kairi   tategamiinu   pengin   Half-n-half Clue