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Stone Age engraving traditions appear on ostrich eggshells

Standardized designs identified on 60,000-year-old water containers

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3:04pm, March 1, 2010

Long before human communication evolved into incessant tapping on computer keys, people scratched on eggshells.

Don’t laugh—researchers say a cache of ostrich eggshells engraved with geometric designs demonstrates the existence of a symbolic communication system around 60,000 years ago among African hunter-gatherers.

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