The roboplant will not rest until it walks to the nearest source of polluted water, sips from it and tops off its microbial fuel cells.

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Roboplant—official name, Nomadic Plant—is a working art project by Gilberto Esparza. Powered by microbial energy, the robot lives a simple, self-sustaining lifestyle focused supplying its microbes with whatever nutrients they require. Meanwhile, a plant piggybacks on top, siphoning extra nutrients for itself.

The skeptic might argue, hey, this is just a robot with a plant on its head! But what's so wrong with that? Robots need hair, too. [plantas nomadas via we make money not art via technabob]