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The Amazonian rainforest was transformed over two thousand years ago by ancient people who built hundreds of large, mysterious earthworks.
Findings by Brazilian and UK experts provide new evidence for how indigenous people lived in the Amazon before European people arrived in the region.
The ditched enclosures, in Acre state in the western Brazilian Amazon, were concealed for centuries by trees. Modern deforestation has allowed the discovery of more than 450 of these large geometrical geoglyphs.
The function of these mysterious sites is still little understood -- they are unlikely to be villages, since archaeologists recover very few artefacts during excavation. The layout doesn't suggest they were built for defensive reasons. It is thought they were used only sporadically, perhaps as ritual gathering places.
The structures are ditched enclosures that occupy roughly 13,000 km2. Their discovery challenges assumptions that the rainforest ecosystem has been untouched by humans.
The archaeologists found evidence Amazonians practiced "agro-forestry" by cultivating economically valuable tree species.
(Score: 0) by Anonymous Coward on Friday February 10 2017, @06:01PM
Things are headed back that direction. Think about the huge number of highly educated people wasting their lives checking for statistical significance and pumping out papers about experiments that will never be reproduced, etc. The default state seems to be people wasting each others time.