What is the fastest running animal in the world?

The fastest known animal in the world is the Cheetah, which is a type of leopard.

It has been recorded to be able to run at over 70 mph.  The cheetah also has the ability to accelerate from 0 km/h to over 100 km/h (62 mph) in five seconds.

The Cheetah is from the cat family and it stands around 60cms in height.  They live in North Africa and South West Asia.