PALIMIU, Brazil—As two helicopters from Brazil’s environmental agency Ibama and the police landed in a clearing in the heart of the Amazon, the hard-bitten men who make a living illegally panning for ...

Brazil said Wednesday a first case of the new coronavirus had been detected among the Yanomami people, an Amazon indigenous group known for its remoteness and its vulnerability to foreign diseases.

Napoleon Chagnon, a cultural anthropologist whose studies of the indigenous Yanomami people of the Amazon rainforest made them famous but whose methods provoked intense disputes among other ...

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