1. 猬   toad   panther   hedgehog   gorilla   Hint Half-n-half Clue   2. 水獭   panther   ass   bison   otter   Half-n-half Clue   3. 考拉   bulldog   porcupine   koala   polar bear   Half-n-half Clue   4. 黑猩猩   ass   chimpanzee   hedgehog   penguin   Half-n-half Clue   5. 河马   whale   kangaroo   hare   hippopotamus   Half-n-half Clue   6. 大猩猩   gorilla   seal   bison   reindeer   Half-n-half Clue   7. 鬣狗   hyena   bulldog   beaver   hedgehog   Half-n-half Clue