Individual cells can do animal-like things such as hunt and solve mazes, despite their simple anatomy and lack of brains.
How they pull off these feats is not completely understood.
Even the simplest tasks, like walking and swimming, require animals to use muscles — which Euplotes doesn’t even have.
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“Our work lays a foundation for studying sensorimotor behavior in Euplotes, which will shed light on principles of cellular behavior.”