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.
克里斯托弗·里夫///约翰尼·卡森///比尔·克林顿///希拉里·罗德姆·克林顿///格伦·克洛斯///杰夫·丹尼尔斯///理查德·唐纳// Brooke Ellison / Gae Exton / Alexandra Reeve Givens //乌比·戈德堡// Laurie Hawkins //约翰·豪斯曼// Barbara Johnson / Kevin Johnson //约翰·克里// Steven Kirshblum / Michael Manganiello //巴拉克·奥巴马///丹娜/