Slime can see: Tiny cyanobacteria use micro-optics to sense light direction - "No-one else noticed it before either, despite the fact that scientists have been looking at bacteria under microscopes for the last 340 years."

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Slime can see: Tiny cyanobacteria use micro-optics to sense light direction - "No-one else noticed it before either, despite the fact that scientists have been looking at bacteria under microscopes for the last 340 years."