Photo taken on Sept. 7, 2013 shows the starfish, urchin and anemone collected by China's manned submersible Jiaolong in Pacific Ocean. Jiaolong and its support ship the Xiangyanghong-09 are on a scientific research voyage focusing on polymetallic nodules in the northeast Pacific and cobalt-rich crusts in the northwest Pacific. (Xinhua/Yu Xiaojie)