Humans
The Amazon may contain thousands of undiscovered ancient structures
Archaeological surveys have uncovered earthworks built by pre-Columbian societies across the Amazon, suggesting the rainforest isn't as pristine as we once thought
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Archaeological surveys have uncovered earthworks built by pre-Columbian societies across the Amazon, suggesting the rainforest isn't as pristine as we once thought
Three archaeological sites in South Africa feature impressions that might have been made by ancient footwear, but pinpointing when humans first wore shoes is challenging