A cheetah. When I was in high school, I was the state final runner-up (Bronze Medal) in the 100 yard dash. (Back then we were still using English measurements.) My relay team won the state final. I was what is called the Anchor or the fourth runner.
In football, even at 6'4", I was the idiot to run back all kicks. People used to tell me that they were amazed at my speed. I told them what they were seeing was fear in action.
I had to edit my original post to correct my mistakes. I apologize for misleading anyone.