Coolest article of 2024. I copied a few non-adjacent clips below:
https://www.bbc.com/news/science-environment-67940671

"It changes the way we see Amazonian cultures. Most people picture small
groups, probably naked, living in huts and clearing land - this shows
ancient people lived in complicated urban societies," says co-author
Antoine Dorison.

The city was built around 2,500 years ago, and people lived there for up
to 1,000 years, according to archaeologists.

It is difficult to accurately estimate how many people lived there at
any one time, but scientists say it is certainly in the 10,000s if not
100,000s.

....

"Imagine that you discovered another civilisation like the Maya, but
with completely different architecture, land use, ceramics," says José
Iriarte, a professor of archaeology at University of Exeter, who was not
involved in this research.

Some of the findings are "unique" for South America, he explains,
pointing to the octagonal and rectangular platforms arranged together.

....

Prof Rostain says he was warned against this research at the start of
his career because scientists believed no ancient groups had lived in
the Amazon.

"But I'm very stubborn, so I did it anyway. Now I must admit I am quite
happy to have made such a big discovery," he says.