A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus Felisa Wolfe-Simon1,2,*, Jodi Switzer Blum2, Thomas R. Kulp2, Gwyneth W. Gordon3, Shelley E. Hoeft2, Jennifer Pett-Ridge4, John F. Stolz5, Samuel M. Webb6, Peter K. Weber4, Paul C. W. Davies1,7, Ariel D. Anbar1,3,8, Ronald S. Oremland21NASA Astrobiology Institute, USA.2U.S. Geological Survey, Menlo Park, CA 94025, USA.3School of Eart
