How a Biofilm’s Strange Shape Emerges From Cellular Geometry

Biofilms lead lives of liminality. Just a few cells thick, these layered communities of microbes anchor themselves to solid surfaces at interfaces — between rocks and salt water on slimy rocks in tide pools, where plants meet dirt in the root systems of plants, or on the saliva-covered surface of your teeth. Amalgamations of single cells, biofilms grow and develop into unified life forms that can…

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