1. Camelus dromedarius   lion   wolf   camel   rhinoceros   Hint Half-n-half Clue   2. Alopex lagopus   wolf   fox   giraffe   zebra   Half-n-half Clue   3. Canis lupus   frog   dog   wolf   lion   Half-n-half Clue   4. Balaenoptera musculus   cat   zebra   giraffe   whale   Half-n-half Clue   5. Rana tigrina   leopard   tiger   frog   lion   Half-n-half Clue   6. Panthera tigris   lion   leopard   wolf   tiger   Half-n-half Clue   7. Homo sapiens   zebra   man   frog   fox   Half-n-half Clue