Tyson Gay 9.78 -0.4m/s WL

I respectfully disagree. Going back to prehistoric times, humans have been hunting with spears, knives, and blow pipes and such, we can find archaeological evidence to support this.

I say, running at max speed for 100+ meters is a relativity new undertaking for the human body apposed to walking for miles (i.e., Asiatics migration from Siberia to North America who later on became the Native Americans), jogging for miles (Mayan mail runners) and hunting in groups to utilize the ambush technique as highjumper10 pointed out.