A new study suggests patches of fertile soil in the Amazon, known as dark earth, were intentionally produced by ancient Amazonians as a way to improve the soil and sustain large and complex societies.
The three staple crops dominating modern diets — corn, rice and wheat — are familiar to Americans. However, another top crop is something of a dark horse: cassava. While nearly unknown in temperate ...
The Amazon river basin is known for its immense and lush tropical forests, so one might assume that the Amazon’s land is equally rich. In fact, the soils underlying the forested vegetation, ...
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