1. horse   Equus caballus   Rana tigrina   Rattus rattus   Homo sapiens   Hint Half-n-half Clue   2. cow   Homo sapiens   Rana tigrina   Canis familiaris   Bos taurus   Half-n-half Clue   3. lion   Diceros bicornis   Camelus dromedarius   Panthera leo   Rana tigrina   Half-n-half Clue   4. zebra   Canis lupus   Diceros bicornis   Equus zebra   Felis domesticus   Half-n-half Clue   5. rat   Bos taurus   Canis familiaris   Canis lupus   Rattus rattus   Half-n-half Clue   6. man   Homo sapiens   Alopex lagopus   Balaenoptera musculus   Panthera leo   Half-n-half Clue   7. whale   Homo sapiens   Balaenoptera musculus   Panthera pardus   Panthera tigris   Half-n-half Clue