Last Updated: Tuesday, May 1, 2012, 12:17
Bigger isn`t always better -- at least when it comes to the sprinting speed of animals, says a new study by Harvard University.
Last Updated: Tuesday, January 26, 2010, 10:03
Jamaican sprinter Usain Bolt`s record-setting performances have unleashed a wave of interest in the ultimate limits to human running speed.
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