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