Cheetahs use their incredible speed to hunt. Cheetahs are the fastest land animal. They can reach speeds up to 60 mph (95km/h) in just four seconds. They have long slender bodies, long legs and flexible spines. This type of body helps the cheetah reach high speeds. Cheetahs mainly eat antelope and other grazing animals. They live on the grasslands and semideserts of Africa.