1. Panthera tigris   tiger   wolf   leopard   lion   Hint Half-n-half Clue   2. Homo sapiens   elephant   man   wolf   frog   Half-n-half Clue   3. Canis lupus   wolf   fox   horse   leopard   Half-n-half Clue   4. Rattus rattus   rat   man   zebra   horse   Half-n-half Clue   5. Rana tigrina   tiger   frog   lion   leopard   Half-n-half Clue   6. Diceros bicornis   rhinoceros   rat   giraffe   camel   Half-n-half Clue   7. Felis domesticus   cow   cat   giraffe   wolf   Half-n-half Clue