Researchers wear panda costumes to ensure that the cub's environment is devoid of human influence, October 8, 2012. After transferred to a bigger living environment with a higher altitude and a more complicated terrain for five months, giant panda Tao Tao, 26 months old, has finished the third phase of its training to be reintroduced to the wild, scheduled on October 11, 2012. [Photo: CNS/Zhong Xin]
