The Cheetah is considered to be the fastest animal in the world.
A cheetah can run at a top speed of 58 MPH.
A lion can run at a top speed of 50 MPH a horse can run at a top speed of 55 MPH and a Leopard can run at a top speed of 36 MPH.
Although the Cheetah can run at a top speed of 58 MPH and is considered by many people to be the top runner and fastest animal in the world they actually are not the fastest.
An ostrich can reach a top speed of 60 MPH for short periods so since an ostrich can run at 60 MPH even for short periods they really are the fastest animal in the world.
However the cheetah can run at the 58 MPH top speed for longer periods of time.