image: This image shows a photographic guide on how to find cryptic filamentous cyanobacteria inhabiting soil crust in arid lands. This image relates to a paper that appeared in the June 28, 2013, issue of Science, published by AAAS. The paper, by Ferran Garcia-Pichel at Arizona State University in Tempe, AZ, and colleagues was titled, "Temperature Drives the Continental-Scale Distribution of Key Microbes in Topsoil Communities." view more
Credit: [Image courtesy of F. Garcia-Pichel]