First, the need for survival. In primitive society, human beings in the process of fighting against nature, in order to protect themselves, avoid the harm of the beast, often the hides, horns and other things hanging on their heads, arms, wrists or feet, on the one hand is to disguise themselves as prey of the same kind to confuse each other, on the other hand these hides the horn itself is a defensive or attack weapon. As for the small gravel, small animal bones, or teeth hanging on the neck, waist, or wrist, the real role of the human being, in addition to the earliest unconscious ornament, may be the need to count or remember.
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