This forest has stayed wild for 5,000 years -- the soil shows it

ScienceDaily
Jun 7, 2021, 4:12 pm139 pts
Parts of the Amazon have been cultivated by Indigenous peoples for thousands of years, and mere centuries ago were the sites of cities and farmland, but other parts are 'untouched.' By examining microscopic bits of plant remains and charcoal in the soil, scientists learned that the Putumayo region of Peru's…

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