1. hyène   beaver   hyena   octopus   cheetah   Hint Half-n-half Clue   2. castor   walrus   bulldog   hyena   beaver   Half-n-half Clue   3. bison   antelope   stag   hippopotamus   bison   Half-n-half Clue   4. bouledogue   bulldog   koala   stag   antelope   Half-n-half Clue   5. crapaud   cheetah   jackal   toad   hyena   Half-n-half Clue   6. rhinocéros   polar bear   bat   ass   rhinoceros   Half-n-half Clue   7. chauve-souris   hyena   bat   lioness   whale   Half-n-half Clue