1. Rana tigrina   tiger   lion   frog   leopard   Hint Half-n-half Clue   2. Homo sapiens   wolf   frog   man   lion   Half-n-half Clue   3. Equus zebra   cow   rhinoceros   fox   zebra   Half-n-half Clue   4. Giraffa camelopardalis   tiger   fox   zebra   giraffe   Half-n-half Clue   5. Equus caballus   giraffe   horse   zebra   elephant   Half-n-half Clue   6. Felis domesticus   rat   lion   frog   cat   Half-n-half Clue   7. Canis familiaris   elephant   zebra   dog   tiger   Half-n-half Clue