Humanoid robot Jia Jia interacts with visitors at the Annual Meeting of the New Champions, part of the World Economic Forum's various themed gatherings and also known as ‘Summer Davos’, in Tianjin, June 27, 2016. Developed by Chen Xiaoping and his colleagues at the University of Science and Technology of China, Jia Jia can speak, shows micro-expressions, and move its lips and body. It's creators claim it to be “the most realistic ever made”. (Photo: China News Service/Zhang Daozheng)