1. Equus zebra   rhinoceros   whale   zebra   leopard   Hint Half-n-half Clue   2. Panthera tigris   wolf   leopard   lion   tiger   Half-n-half Clue   3. Bos taurus   cow   dog   rhinoceros   fox   Half-n-half Clue   4. Balaenoptera musculus   man   horse   elephant   whale   Half-n-half Clue   5. Felis domesticus   cat   fox   cow   tiger   Half-n-half Clue   6. Canis familiaris   wolf   rhinoceros   cat   dog   Half-n-half Clue   7. Giraffa camelopardalis   giraffe   man   cow   horse   Half-n-half Clue