The many colors of Serratia marcescens. Image courtesy Dr. Robert Shanks, the University of Pittsburgh.

Over on the news side today is an article I put together for Scientific American Online on some mysterious, ubiquitous, and sometimes-deadly red bacteria that are probably at this moment living in your shower grout and contact lens case. Plus, when slime molds eat them, their plasmodia turn red like flamingoes eating shrimp turn pink. How cool is that! Check it out!