WATCH: Cheetahs 101

You may already know that cheetahs are the world's fastest land animal. But did you know their tails play a crucial role in hunting? Check out these and other fun facts about cheetahs.

The cheetah is the world's fastest land mammal. With acceleration that would leave most automobiles in the dust, a cheetah can go from zero to 60 miles an hour in only three seconds. Wild cheetahs are thought to be able to reach speeds of nearly 70 miles an hour—although they can only sustain that speed for about 30 seconds. These cats are nimble at high speeds, able to make quick and sudden turns in pursuit of prey.

There’s some debate over whether cheetahs are “big cats.” Some scientists argue that the term only refers to cats that are capable of roaring: lions, tigers, jaguars, and leopards. Cheetahs can’t roar, though they can they purr. Still,

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