1. porcospino   beaver   octopus   rhinoceros   porcupine   Hint Half-n-half Clue   2. rinoceronte   bulldog   rhinoceros   antelope   beaver   Half-n-half Clue   3. pantera   lioness   walrus   ox   panther   Half-n-half Clue   4. bulldog   bat   bulldog   dolphin   polar bear   Half-n-half Clue   5. lontra   ox   otter   lioness   koala   Half-n-half Clue   6. bue   dolphin   gorilla   ox   ass   Half-n-half Clue   7. polpo   chimpanzee   panda   octopus   mare   Half-n-half Clue