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