1. Fastest marine animal   Sperm Whale   Killer Whale   Squid   Dolphin   Shark   Hint Half-n-half Clue   2. Largest predatory fish   Swordfish   Great White Shark   Catfish   Piranha   Electric Eel   Half-n-half Clue   3. Most common non-contagious disease   Cholera   AIDS   Tooth decay   Typhoid   Malaria   Half-n-half Clue   4. Tallest dog (breed)   Greyhound   Labrador   Dalmatian   Dobberman   Great Dane   Half-n-half Clue   5. Largest mammal   Elephant   Blue Whale   Rhinoceros   Giraffe   Hippopotamus   Half-n-half Clue   6. Heaviest bird of prey   Bald Eagle   Kori Bustard   Andean Condor   Great Bustard   Peregrine Falcon   Half-n-half Clue   7. Fastest land animal   Antelope   Cheetah   Tiger   Gazelle   Hare   Half-n-half Clue