Actor Richard Kiley narrates this investigation into both new and well-known clues to the origins of the human race. Razor -sharp tools of our ancestors are examined and discussed by historians and experts. A number of fossilized skeletons that are more than a million years old are examined by scientists. Ash-entombed footprints provide a trail into centuries that ended long ag...$现代人类都起源于非洲……$通过现在人、原始人、猩猩的骷髅骨骼比较研究得出人类起源之谜，和与后来通过基因追溯的方法研究的结论是一致的，人类均起源于非洲。$National Geographic Specials: Mysteries of Mankind (1988)$很久以前看的，虽然现在很多观点被推翻。但以前看的时候觉得很好看。$有意思。
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