1. delfín   sea lion   dolphin   stag   whale   Hint Half-n-half Clue   2. buey   antelope   mare   rhinoceros   ox   Half-n-half Clue   3. tejón   badger   sea lion   penguin   beaver   Half-n-half Clue   4. hipipótamo   hippopotamus   penguin   mare   lioness   Half-n-half Clue   5. murciélago   bat   turtle   hyena   chimpanzee   Half-n-half Clue   6. ciervo   stag   hare   lioness   bison   Half-n-half Clue   7. pingüino   penguin   hare   chimpanzee   bat   Half-n-half Clue