1. morsa, leão marinho   walrus   bulldog   kangaroo   chimpanzee   Hint Half-n-half Clue   2. panda, urso panda   panda   rhinoceros   kangaroo   ox   Half-n-half Clue   3. boi   cheetah   kangaroo   panda   ox   Half-n-half Clue   4. gorila   otter   seal   gorilla   hippopotamus   Half-n-half Clue   5. antílope   bat   antelope   polar bear   toad   Half-n-half Clue   6. ouriço   hedgehog   whale   beaver   bat   Half-n-half Clue   7. lebre   koala   hare   bison   rhinoceros   Half-n-half Clue