Comment Re:Wow a machine faster than a human. (Score 4, Interesting) 91
http://en.wikipedia.org/wiki/Persistence_hunting
It's called Persistence Hunting, and it's awesome. There was a David Attenborough-narrated video of it on youtube that has been taken down, but basically they chase the animal for hours and hours. Being able to run isn't enough, you have to be able to quickly track it as well when it's out of sight. The upshot is that when you finally run it down, it's half dead with exhaustion already, and you can literally walk right up to it, spear in hand, and kill it.
It's also a possible explanation for our relative hairlessness. Sweating apparently works better for cooling on bare skin.