Garden Ants Lasius Niger Perceive a Rotating Landmark

Garden ant (Lasius niger) workers are well known to use visual landmarks for navigation, which are gained by stopping to memory the view like a snap shot, as comparing with the view in front of them. Here, we researched whether ants could perceive rotating landmark or not. We let ants to walk on the rotating road with a sheet attached trail pheromone. Since we discovered the answer is yes, we tried to approach the reason as excluding the confliction between two types of information, pheromone and visual landmark.