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Aerial view of the Amazon Rainforest, near Manaus, the capital of the Brazilian state of Amazonas
Amazon, South America. The Amazon River Basin is home to the largest rainforest on earth. The basin, roughly the size of the forty-eight contiguous United States, covers some 40% of the South American continent and includes part of eight South American countries including Brazil, Bolivia, Peru, Ecuador, Colombia, Venezuela, Guyana, and Suriname, as well as French Guiana, a department of France.