Japan's Utsunomiya University demonstrates a robot that picks ripe strawberries during a demonstration at the annual International Robot Exhibition in Tokyo on December 2, 2015. Some 450 companies and organisations displayed their latest robots and 5,000 people were expecting to visit a four-day event.      AFP PHOTO / Yoshikazu TSUNO / AFP / YOSHIKAZU TSUNO        (Photo credit should read YOSHIKAZU TSUNO/AFP via Getty Images)