The Amazon rainforests seem like “an environment largely untouched by humans.” But new archeological discoveries are changing that perception.

“With so much evidence of ancient human activity, it is now thought the pre-Columbian Amazon was inhabited by millions of people – some living in large built-up areas complete with road networks, temples and pyramids.”

And they did it all without the benefit of agriculture as we now understand it.

These discoveries defy conventional wisdom about the nature of civilization.

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