A team of researchers has developed a robot that can maneuver so deftly that it’s able to pick up a lettuce head, find its outer layer of leaves, and delicately remove them. The machine is able to perform this task using three tools: a camera to size-up an individual lettuce head and find its stem, an arm to roll and position the lettuce for tearing, and another arm with a suction device on the end for removing leaves.