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Poison-breathing bacteria

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Buried deep in the mud along the banks of a remote salt lake near Yosemite National Park are colonies of bacteria with an unusual property: they breathe a toxic metal to survive. Researchers from the University of Georgia discovered the bacteria on a recent field expedition to Mono Lake in California, and their experiments with this unusual organism show that it may one day become a useful tool for industry and environmental protection.

The bacteria use elements that are notoriously poisonous to humans, such as antimony and arsenic, in place of oxygen, an ability that lets them survive buried in the mud of a hot spring in this unique saline soda basin.

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