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Both scores featured live music, Russian pianist Vladimir Rumyantsev playing Beethoven’s “Diabelli” Variations offstage and Third Coast Percussion performing Glass’ “Aguas da Amazonia” in the pit.

The authors add, "'Nature's Strongholds' -- large, interconnected, ecologically intact areas that are well managed and equitably governed -- are identified in Amazonia and Central Africa. The approach offers an effective way to conserve biodiversity at a global scale."

Over the course of millennia, Indigenous peoples bred it from a weedy wild plant into a crop that stores prodigious quantities of starch in potatolike tubers, thrives in Amazonia's poor soils and is nearly invulnerable to pests.

How can cassava be so toxic, yet still dominate diets in Amazonia?

In modern hands, they can be bred to produce new types, fitting purposes beyond those in Amazonia itself.