1. camel   Panthera tigris   Camelus dromedarius   Diceros bicornis   Homo sapiens   Hint Half-n-half Clue   2. leopard   Homo sapiens   Rattus rattus   Giraffa camelopardalis   Panthera pardus   Half-n-half Clue   3. giraffe   Camelus dromedarius   Bos taurus   Rattus rattus   Giraffa camelopardalis   Half-n-half Clue   4. horse   Canis familiaris   Equus caballus   Balaenoptera musculus   Rattus rattus   Half-n-half Clue   5. rhinoceros   Elephas maximus   Diceros bicornis   Balaenoptera musculus   Panthera pardus   Half-n-half Clue   6. tiger   Equus caballus   Balaenoptera musculus   Panthera tigris   Alopex lagopus   Half-n-half Clue   7. whale   Panthera leo   Elephas maximus   Diceros bicornis   Balaenoptera musculus   Half-n-half Clue