1. sapo   mare   hedgehog   toad   dolphin   Hint Half-n-half Clue   2. liebre   hyena   otter   chimpanzee   hare   Half-n-half Clue   3. oso polar   cheetah   polar bear   hippopotamus   shark   Half-n-half Clue   4. chacal   polar bear   hedgehog   jackal   walrus   Half-n-half Clue   5. koala   walrus   koala   seal   rhinoceros   Half-n-half Clue   6. antílope   antelope   seal   bison   stag   Half-n-half Clue   7. burro, asno   chimpanzee   ass   lioness   reindeer   Half-n-half Clue