A cat-like robot has started selling unattended souvenirs at Narita airport near Tokyo in a demonstration experiment aimed at addressing manpower shortages and improving operational efficiency.The experiment, the first of its kind in Japan, began last month and is a joint project between the airport and the Nomura Research Institute, according to the research firm. It will continue until Dec. 15 in Terminal 3's domestic boarding gate area.At the "Pickru Store," customers select an item on a touch panel and pay for it. Then, the robot responds by picking one from stacks of souvenirs with its…READ FULL ARTICLE