Robot moved by a slime mould's fears

This article describes what is essentially an exoskeleton for mold that magnifies its natural movements many times over. It's kind of like Ripley in the Loader at the end of Aliens. But, y'know... with a slime mold. How much longer before we have an army of cybernetic monkeys go rogue and take over the White House, demanding truckloads of bananas and flinging poo at near supersonic speeds with the mechanical arms we so foolishly equipped them with?

A bright yellow slime mould that can grow to several metres in diameter has been put in charge of a scrabbling, six-legged robot.

The Physarum polycephalum slime, which naturally shies away from light, controls the robot's movement so that it too keeps out of light and seeks out dark places in which to hide itself.
...
Physarum polycephalum is a large single-celled organism that responds to food sources, such as bacteria and fungi, by moving towards and engulfing it. It also moves away from light and favours humid, moist places to inhabit. The mould uses a network of tiny tubes filled with cytoplasm to both sense its environment and decide how to respond to it. Zauner's team decided to harness this simple control mechanism to direct a small six-legged (hexapod) walking bot.

Mechanical embodiment

They grew slime in a six-pointed star shape on top of a circuit and connected it remotely, via a computer, to the hexapod bot. Any light shone on sensors mounted on top of the robot were used to control light shone onto one of the six points of the circuit-mounted mould – each corresponding to a leg of the bot.

As the slime tried to get away from the light its movement was sensed by the circuit and used to control one of the robot's six legs. The robot then scrabbled away from bright lights as a mechanical embodiment of the mould. Eventually, this type of control could be incorporated into the bot itself rather than used remotely.