The cheetah is the fastest land animal in the world, reaching speeds of up to 70 miles per hour. They can accelerate from 0 to 68 miles per hour in just three seconds. Cheetahs are the only big cat that can turn in mid-air while sprinting.The Cheetah (Acinonyx jubatus) is an atypical member of the cat family (Felidae) that hunts by speed rather than by stealth or pack tactics. It is the fastest of all terrestrial animals and can reach speeds of up to 110 km/h (70 mph) in short bursts. ... It is the only cat that cannot completely retract its claws.