1. Diceros bicornis   rhinoceros   camel   fox   wolf   Hint Half-n-half Clue   2. Rana tigrina   leopard   lion   tiger   frog   Half-n-half Clue   3. Canis lupus   frog   camel   dog   wolf   Half-n-half Clue   4. Panthera tigris   lion   wolf   leopard   tiger   Half-n-half Clue   5. Homo sapiens   frog   man   leopard   cow   Half-n-half Clue   6. Elephas maximus   man   rat   elephant   cow   Half-n-half Clue   7. Canis familiaris   fox   frog   dog   camel   Half-n-half Clue