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 hominid relatives.Part 1,"First Steps," examines the factors that caused us to split from the other great apes. The program explores the fossil of"Selam," also known as"Lucy's Child." Paleoanthropologist Zeray Alemseged spent five years carefully excavating the sandstone-embedded fossil. NOVA's cameras are there to capture the unveiling of the face, spine, and shoulder blades of this 3.3 million-year-old fossil child. And NOVA takes viewers"inside the skull" to show how our ancestors' brains had begun to change from those of the apes.Why did leaps in human evolution take place?"First Steps" explores a provocative"big idea" that sharp swings of climate were a key factor.
凯文·费奇/伊丽莎白·奥尔森/保罗·贝坦尼/克里斯托弗·贝克/丹尼尔·布鲁赫/凯特·戴琳斯/凯瑟琳·哈恩/朱利安·希威德/亨利·杰克曼/杰特·克莱恩/安东尼·麦凯/兰道尔·朴/泰柔娜·派丽丝/埃文·彼得斯/怀亚特·拉塞尔/马特·沙克曼/卡莉·斯考格兰德/塞巴斯蒂安·斯坦/艾米丽·万凯普/Baylen D. Bielitz/Gavin Borders/