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Sunday 11 November 2012

Cheetah Speed

Did you know cheetahs can run at a top speed of 70 mph? That's 112 kph! Cheetahs can run fast because they have a large heart and nostrils, and their spine contracts with so much force it gives them a stride of 25 feet! Did you know that cheetahs take 150 breahs per minute? That's twice as many as the fastest human sprinter! Also, their heart pumps over 16 litres of blood per minute, which circulates their body's entire blood supply in just less than 20 seconds! But with all that blood pumping so fast, they can only run for a minute at maximum before they overheat and need to rest. They actually have to rest anywhere from 15 to 30 minutes, just to get back to a normal heart and breathing rate! Did you know cheetahs burn 300 calories per chase? That means they need to eat more calories than they burn!

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