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A cell can act in astonishingly complex ways. It must decide for itself whether to grow and multiply, rest, specialize, age ...

It has long been understood that groups of cells can perform complex tasks, such as navigating mazes or strategically ...

The planarian is nobody's idea of a genius. A flatworm shaped like a comma, it can be found wriggling through the muck of lakes and ponds worldwide. Its pin-size head has a microscopic structure that ...