简介：After six months of scientifically advanced training, three of the world's most elite distance runners set out to break the two-hour marathon barrier. These pioneers go on a global trek to defy the unthinkable and break the two-hour feat, from testin
主演：Zeresenay Alemseged Michel Brunet Peter de Menocal
简介：Where did we come from? What makes us human? An explosion of recent discoveries sheds light on these questions, and NOVA's comprehensive, three-part special, "Becoming Human," examines what the latest scientific research reveals about our h
主演：汤姆·萨维尼 弗兰克·威比 Santo Fazio Mackenzie Christine Hawkins Carl Burrows Miguel A. Lopez Jerry Murdock Zoe Daelman Chlanda Tom Reid Joe Pisani Meret Oppenheim Bart Mastronardi Joslyn Stabile Mark Filipelli Corey Radke Charles Rosenay David Marancik Becky Byers