Do not eat this ground beef product, authorities warn. It might be contaminated with a strain of E. coli, a bacterium that ...

In the world of microorganisms, microbes compete for turf, spew chemicals at foes, and sometimes exploit the microscopic terrain to gain an edge. In a study published in the Biophysical Journal, ...

Pseudomonas aeruginosa (small rod-shaped bacteria) swarms toward and around a neighboring Cryptococcus neoformans (round yeast) colony. The thin fluid halo surrounding the yeast enables the bacteria ...