One of the fastest animals in the world, the cheetah streaks across the plains and valleys of Ethiopia. But there is another kind of "cheetah" renowned for speed who are famous for running on 2 legs instead of 4. Some of the world's elite marathon and long distance running athletes hail from Ethiopia, including Abebe Bikila, the first African Olympic gold medalist; Belayneh Densamo, who broke the world record for long distance running; and Haile Gebreselassie,...