1. coala   reindeer   koala   ox   bison   Hint Half-n-half Clue   2. leoa   seal   lioness   panda   koala   Half-n-half Clue   3. morcego   ass   antelope   beaver   bat   Half-n-half Clue   4. canguru   hippopotamus   panda   polar bear   kangaroo   Half-n-half Clue   5. baleia   whale   chimpanzee   antelope   hyena   Half-n-half Clue   6. lontra   panda   hyena   otter   rhinoceros   Half-n-half Clue   7. castor   beaver   jackal   bulldog   walrus   Half-n-half Clue