Workers help a dolphin from Osaka, Japan, adapt to the new environment in a breeding pool of Penglai Polar Ocean World in Shandong province, May 15, 2013. Ten dolphins from Osaka, Japan, were brought to the ocean park on Wednesday by air, and they are due to start performing for tourists in three months. [Photo/Xinhua]

Dark clouds amass in the sky over Suichuan county in East China's Jiangxi province on May 15, 2013. Rainstorms have struck the area since Tuesday night and resulted in floods that stranded thousands of people. [Xiao Yuanban/Asianewsphoto]