Story perspectives

Ancient Ostrich Eggshells Reveal Early Human Cognitive Complexity

3/22/2026

Summary

Story summary

A study of 112 ostrich eggshell fragments from southern Africa shows that around 60,000 years ago, over 80% display spatial regularities, including grids and diamond motifs.
Silvia Ferrara, an archaeologist, emphasizes that these designs indicate a structured cognitive process and the ability to conceptualize complex ideas.
The findings signal an evolution in human thought and lay the groundwork for future artistic and symbolic developments.
The study appeared in PLOS One.

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Story summary

A study of 112 ostrich eggshell fragments from southern Africa shows that around 60,000 years ago, over 80% display spatial regularities, including grids and diamond motifs.
Silvia Ferrara, an archaeologist, emphasizes that these designs indicate a structured cognitive process and the ability to conceptualize complex ideas.
The findings signal an evolution in human thought and lay the groundwork for future artistic and symbolic developments.
The study appeared in PLOS One.