 Wolfe-Simon then led a search for such an organism by targeting the naturally occurring arsenic-rich Mono Lake, California.This search led to the discovery of the bacterium GFAJ-1, which her team claimed in a "Science" on-line article in December 2010 was able to incorporate arsenate as a substitute for a small percentage of the typical phosphate in its DNA and other essential biomolecules.If correct, this would be the only known organism to be capable of replacing phosphorus in its DNA and other vital biochemical functions.