1. castor   beaver   chimpanzee   dolphin   hippopotamus   Hint Half-n-half Clue   2. buldogue   hare   lioness   bulldog   hippopotamus   Half-n-half Clue   3. leoa   lioness   porcupine   toad   beaver   Half-n-half Clue   4. chita, leopardo caçador   hyena   mare   cheetah   penguin   Half-n-half Clue   5. urso polar   polar bear   antelope   seal   otter   Half-n-half Clue   6. gorila   penguin   hare   gorilla   bulldog   Half-n-half Clue   7. égua   hyena   jackal   porcupine   mare   Half-n-half Clue