Horse naturally. But not all horses are fast. Your fastest can be certain sizes of Medicine Hat horses, Thoroughbreds and Arabian horses. read more
There would be a better race between a Mule and a Camel than straight up horses. Sure a horse could outrun them, but they will collapse of exhaustion very quickly. So I would prefer to see a real race between a Mule and a Camel. read more
2. Horse. Same as above. Lions are not great pursuit animals, even slower than cheetahs. 3. Elephant. Rhinos do not often run and when they do, it is a quick charge. Elephants walk faster than a man can run. 4. Zebra. Buffalos have endurance but no speed. 5. German Shepherd. Bears are also short range runners. 6. have no idea. 7. have no idea. read more