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Story summary
- A study published in PLOS ONE shows that about 60,000 years ago, Homo sapiens in southern Africa engraved geometric patterns on ostrich eggshells.
- Researchers analyzed 112 fragments, and more than 80% displayed consistent spatial arrangements, indicating a grasp of geometry.
- Engravings included grids, parallel lines, and diamond shapes, suggesting planned construction rather than random markings, and pointing to early symbolic thought.
