古人类学家在辽阔、炎热、寂静的非洲荒野寻找最早的人类祖先——直立行走的人科成员。他们偶然会找到人科成员的一件头骨骨片,就把它拿到研究室中去测量、分析,写一篇论文,然后把骨片储存起来。只有极少数古人类学家一辈子有那么一、二次好运找到的骨片足以拼接成一具完整的头骨或骨架;随之而来的是召开 Ancient anthropologists search for the earliest human ancestors in the vast, hot, still African wilderness - members of the human family standing upright. Occasionally they find a piece of skull bone of a human member and take it to the laboratory to measure, analyze, write a dissertation, and store the bone piece. Only a handful of paleoanthropologists have such a lifetime, second good luck to find enough bone splicing into a complete skull or skeleton; followed by the convening