The Amazon rainforest is hiding thousands of ancient structures that were built by pre-Columbian civilizations. A new study used satellite imagery and machine learning to detect these earthworks, which range from ditches to mounds. The study reveals the extent and diversity of human occupation in the Amazon, and challenges the idea that it was a pristine wilderness. #Amazon #AncientStructures #Vice https://www.vice.com/en/article/k7zp93/thousands-of-ancient-structures-are-still-hidden-deep-in-the-amazon-study-says
Thousands of Ancient Structures Are Still Hidden Deep In the Amazon, Study Says

More than 90 percent of pre-Columbian earthworks in the Amazon remain undiscovered, researchers estimate.