The Robot of cockroach

The joint study group in Belgium, France and Switzer land suceed to lead the group of cockroach. This way is using the robots which have the smell and the move like cockroaches. This robots is square and white. This size is 3 centimeters. This appearance isn't like. But it is covered by chemical substance which the cockroach use to perceive the fellows. This robots make to move the cockroach. This technique is adavanced. We may not kill the cockroach to repel our surrounding.