Evolution made humans marathon runners

Evolution made humans marathon runners (New Scientist: 17-Nov-04)
We are born to run. According to new research, our bodies are highly evolved for running long distances, an ability that allowed our ancestors to conquer the African savannahs. Proponents of the theory say that long-distance running may be an even more significant evolutionary adaptation than bipedal walking, an ability which may have emerged with the appearance of the first hominids some 6 million years ago.