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Theodore Roosevelt (18581919) wrote this firsthand account of his experiences as coleader of the RooseveltRondon Scientific Expedition during its trek through unknown regions of Paraguay and Brazil from the late fall of 1913 to the spring of 1914. Instigated at the request of the American Museum of Natural History and the Brazilian government itself, the expedition was charged with mapping the 950mile River of Doubt a previously unexplored tributary to the Amazon River but the scientific mission swiftly became a harrowing test of endurance from which Roosevelt was lucky to escape alive.
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birth defects, or other reproductive harm.
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