These Humans Have Evolutionarily Adapted To Arsenic

High up in the high Andes mountains of Argentina, a population has adapted to tolerate the toxic chemical arsenic. For thousands of years, in some regions of the Andes, people have been exposed to high levels of it, because arsenic in volcanic bedrock is released into the groundwater. How could this population adapt to tolerate arsenic, a potent killer of such ill repute that it's often the overused plot-driver of many murder mysteries?  read more

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