With fast running cheetahs do 4 steps per second

Cheetahs and greyhounds have very similar styles of running, but somehow manages to big cats overtake dogs rivals. Cheetahs can reach a record speed - 105 kilometers per hour - the speed is much higher than that of greyhounds, which are the fastest dogs and run at a speed not exceeding 70 kilometers per hour.

The scientists were able to detect a difference in how cheetahs and greyhounds move the legs, videotape leg movements of cheetahs in the zoo. Cheetahs were able to change the frequency step, that is, the number of steps per second at high speed. For example, when running at a speed of 32 kilometers per hour, they did on average 2, step 4, and at 61 kilometers per hour - 3, two steps per second. Greyhounds, in turn, did not change the frequency step with increasing speed. She was always 3, 5 steps per second.

In the wild, cheetahs are able to do up to 4 steps per second, which, in combination with a longer pitch, allowing them to overtake dogs.

via factroom.ru