The cheetah is the world's fastest land animal. And the greyhound is the fasted canid - the second fastest land animal. One does 75mph and the other 43mph. Lets put them to a competition!

Of course, it's hard to ever put them in a real drag race. The video above has some pretty cool facts to check out.

Both animals use a rotary gallop - the leg hitting the ground moves in a circle: front left leg, then front right, then hind right, then hind left. That style gives the animals the speed. Watch the video and let us know what you think.

[via Digg Greyhound Running, Mid-Stride Wikimedia Commons]