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One robot can even walk on water. Now that may not impress you, for don't ships move over water?

But the team of researchers from Bristol University has manufactured an insect robot  that does something amazing---it eats pollutants and generates electricity at the same time!

The researchers had examined the water boatman bug for some ideas. It was important to ensure that the robot could move about in water through continuous paddle strokes.

So if you put this wonder machine in a dirty pond, you will find it eating the waste material in the pond. It contains an army of hungry bacteria in its stomach, which eat the waste that the robot consumes along with the dirty water.

It's the doing of a technology, MFC, which uses the feeding action of the bacteria to transform "organic substrate directly into electricity", according to Alternative Energy.

Hence, the electricity it generates is enough drive Row-Bot's "nature-inspired" engine, according to Fast Company . Hence, Row-Bot will pursue its work on its own, gathering and consuming waste without requiring outside human intervention.

A presentation on the Row-Bot was recently made at the International Conference on Intelligent Robots and Systems in Hamburg, Germany.