LiDAR Reveals Ancient Amazon Civilization, Population Estimates Up to 3 Million

LiDAR surveys have uncovered hundreds of earthen structures beneath the Amazon canopy, indicating a previously unknown ancient civilization. The findings suggest the region may have supported up to 3 million people, challenging prior assumptions about pre-Columbian Amazonian demographics. The scale and nature of the society remain uncertain, but the discovery reshapes understanding of historical human habitation in the region.