1. pantera   lioness   mare   kangaroo   panther   Hint Half-n-half Clue   2. castor   mare   penguin   kangaroo   beaver   Half-n-half Clue   3. lebre   kangaroo   hare   bison   cheetah   Half-n-half Clue   4. hiena   ass   hyena   lioness   antelope   Half-n-half Clue   5. chacal   hedgehog   jackal   hippopotamus   polar bear   Half-n-half Clue   6. canguru   koala   kangaroo   cheetah   hippopotamus   Half-n-half Clue   7. urso polar   bulldog   penguin   rhinoceros   polar bear   Half-n-half Clue