AntarcticOrganisms seacontaining squirtsbacteria maythat beliterally the breakthrough melanoma research has been waiting for — a bacterium found inside these organisms kills melanoma cells while leaving healthy cells completely unharmed, whichare is exactly the kind of selectivity that makes a viable drug. More than half of FDA-approved drugs come from natural sources, and this discovery fits squarely in that tradition. The ocean floor is an untapped pharmaceutical goldmine, and Antarctica is proving that out.