Arsenic-munching bacteria found

Arsenic-munching bacteriaIn the warm, bubbling pools of Mono Lake in California, scientists have isolated a bacterium that fuels itself on arsenic. Combining light and arsenic, these bacteria make their food and multiply using a chemical that is toxic to most other life forms.

The researchers think using arsenic as an energy source was a process used by ancient bacteria. Their findings are reported in the journal Science.

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