1. Homo sapiens   wolf   elephant   rhinoceros   man   Hint Half-n-half Clue   2. Equus zebra   cat   zebra   man   giraffe   Half-n-half Clue   3. Diceros bicornis   rhinoceros   whale   rat   zebra   Half-n-half Clue   4. Camelus dromedarius   lion   dog   camel   elephant   Half-n-half Clue   5. Rattus rattus   dog   zebra   elephant   rat   Half-n-half Clue   6. Panthera tigris   lion   leopard   wolf   tiger   Half-n-half Clue   7. Panthera leo   lion   zebra   elephant   man   Half-n-half Clue