At 70 miles per hour (113 kilometers per hour), cheetahs are the world's fastest cat and the world's fastest land mammal, so the world's fastest dog, a greyhound clocked at speeds up to 45 mph (72 km/h), probably won't be catching a cheetah in a sprint.
Can greyhounds beat a cheetah?
If you could put a wild cheetah up against a greyhound in a race, the cheetah would win, no problem. After all, the cheetah's top recorded speed is 65 mph, and the cats are thought to be capable of much more.
Can a greyhound outrun a cheetah?
In their stride Captive cheetahs have gone to the dogs, according to a study in which a racing greyhound has outrun the world's fastest mammal.
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