Photo taken on Jan 30, 2015 shows Adelie penguins playing near the Zhongshan Antarctic Station. January is the warmest month in Antarctica.[Photo/Xinhua]

Photo taken on Jan 30, 2015 shows a physical observatory of the Zhongshan Antarctic Station. January is the warmest month in Antarctica.[Photo/Xinhua]

Photo taken on Jan 30, 2015 shows a snowmobile running near the Zhongshan Antarctic Station. January is the warmest month in Antarctica.[Photo/Xinhua]

Photo taken on Jan 30, 2015 shows a pool, which is call “Mochou Lake”, near the Zhongshan Antarctic Station. January is the warmest month in Antarctica and the pool is in high-water period.[Photo/Xinhua]