Scientists have identified many types of bacteria in the mouth, but many problems remain in understanding how they work with one another. One of the problems is that microbes assemble themselves into densely packed multi-species biofilms. Their density and complexity pose acute difficulties for visualizing individual cells and analyzing their interactions at single-cell level. Scientists have identified many types of bacteria in the mouth, but many problems remain in understanding how they work with one another. One of the problems is that microbes assemble themselves into densely packed multi-species biofilms. Their density and complexity pose acute difficulties for visualizing individual cells and analyzing their interactions at single-cell level. Cell & Microbiology Molecular & Computational biology Phys.org – latest science and technology news stories