Lasers reveal hundreds of geoglyphs made by a mysterious civilization in the Amazon rainforest thousands of years ago https://www.livescience.com/archaeology/americas/lasers-reveal-hundreds-of-geoglyphs-made-by-a-mysterious-civilization-in-the-amazon-rainforest-thousands-of-years-ago?utm_source=flipboard&utm_medium=activitypub Posted into LiveScience @livescience-LiveScience