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Humans were carving crisp geometric patterns into ostrich eggshells 60,000 years ago

Long before writing, agriculture, or cities, people in southern Africa were scratching careful geometric designs into the ...

The secret geometry of ancient humans: What 60,000-year-old eggshell markings reveal about how our ancestors solved problems

Engravings on ostrich eggshells dating back around 60,000 years may offer new clues about the cognitive abilities of early ...