09/02/2018

Small gold mines in Senegal create high mercury contamination

A Duke University-led study has found dangerously high levels of mercury and its more toxic chemical cousin, methylmercury, in soils, sediments and rivers near artisanal gold mines in the West African nation of Senegal.

Video: Why study mouse lemurs?

Like humans, mouse lemurs sometimes develop amyloid brain plaques and other Alzheimer's-like symptoms as they age. Because mouse lemurs are primates, they are a closer genetic match to humans than mice or rats are.

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