无码人妻一区二区三区免费费,亚洲精品无码专区,高清国产一区二区三区在线,亚洲AV永久无码精品天堂久久

播放4

播放1

播放5

播放2

播放3

播放6

劇情簡介

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.

Copyright ? 2009-2024

准格尔旗| 固镇县| 河曲县| 郑州市| 泊头市| 余干县| 台前县| 防城港市| 天津市| 体育| 昌平区| 芮城县| 大港区| 洛南县| 海南省| 韩城市| 徐州市| 朔州市| 定陶县| 靖州| 泸西县| 耿马| 铅山县| 蒙山县| 河曲县| 东乌珠穆沁旗| 响水县| 三门县| 玉溪市| 奇台县| 修文县| 商城县| 凉城县| 石渠县| 洪江市| 阿拉善右旗| 灵武市| 五莲县| 博爱县| 枣阳市| 梁平县|