一些科学家认为可能代表着部落的行动，比如说成功的狩猎行动或者说是一种代表着作息的安排。
Some are thought to represent tribal movements, successful hunts, or the passage of time.
这些狩猎采集部落内男女的平等程度前无古人，后无来者。
Men and women in these hunter-gatherer tribes were the most equal they have ever been.
这些狩猎采集部落内男女的平等程度前无古人，后无来者。
Men and women in these hunter-gatherer tribes were the most equal they have ever been.
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