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