A dolphin adapts to the new environment in the performance pool after they are transferred to the Harbin Polarland in Harbin, northeast China's Heilongjiang Province, Feb. 27, 2021.(Photo: Xinhua)
A trainer comforts dolphins before they are transferred at the Harbin Polarland in Harbin, northeast China's Heilongjiang Province, Feb. 27, 2021.(Photo: Xinhua)
Staff members transfer a dolphin at the Harbin Polarland in Harbin, northeast China's Heilongjiang Province, Feb. 27, 2021. (Photo: Xinhua)
Dolphins adapt to the new environment in the performance pool after they are transferred to the Harbin Polarland in Harbin, northeast China's Heilongjiang Province, Feb. 27, 2021.(Photo: Xinhua)