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(jiǎn)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

达拉特旗| 邵阳县| 家居| 阿尔山市| 久治县| 大悟县| 洛隆县| 陇西县| 青浦区| 德化县| 西和县| 清远市| 克什克腾旗| 郓城县| 华池县| 黄山市| 若羌县| 明溪县| 海阳市| 兰考县| 曲水县| 鄂温| 开江县| 昂仁县| 康马县| 嘉黎县| 塔城市| 贵阳市| 会同县| 将乐县| 牙克石市| 静宁县| 木里| 花垣县| 扬州市| 巨野县| 扎鲁特旗| 金川县| 西吉县| 衡水市| 鹤壁市|