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Photos by © Ken Geiger/National Geographic Magazine

Sarah, an 11-year-old cheetah at the Cincinnati Zoo, broke her own world record by running 100m in
5.95 seconds on June 20, 2012. She was clocked at 61mph. Her previous record of 6.13 seconds was set in 2009.
Her run was photographed for a November 2012 National Geographic magazine article that will include never-before-seen high speed photographs and video of cheetah movement.