China's manned sub collects perfect 'chimney vent' in Indian Ocean(4/6)

Working staff try to tie the rope on China's manned submersible Jiaolong in the seabed of southwestern Indian Ocean, Jan 4, 2015. Jiaolong, named after a mythical dragon, is on a 120-day expedition in the southwest Indian Ocean. It has planned to conduct 20 dives during the four-month period to research polymetallic sulfide, biological diversity, hydrothermal microbes and genetic resources in the area. (Xinhua/Zhang Xudong)