HEY LOOK The spherical bacteria Synechocystis (shown here in false color) can use their single-celled bodies almost like eyeballs. A light shining up from the bottom of this image passes through the cells and focuses on the far side (white arrows highlight examples of focused light). A laser light source in the center (red dot) helped test which way the cells move in reaction to bright spots of light.
N. Schuergers et al/eLife 2016
This raspberry leaf (in a closeup, colorized electron micrograph) is covered in a biofilm of bacteria and fungi. Rosmarinic acid may keep bacterial visitors from overtaking a plant.
Stefan Diller/Science Source
Campbell Soup Company, maker of SpaghettiOs, has declared its support for mandatory labeling of GM foods. There are lots of challenges in labeling guidelines when there’s no single definition of a GMO.