Two Beluga whales rehearse for new performances with their trainers at Harbin Polarland in Harbin, capital of Northeast China's Heilongjiang province on Jan 24. Trainers’ performances with Beluga whales are the most popular shows during the holidays. Rehearsals for the new performance programs have been held several times in order to give spectacular performances for tourists visiting the attraction. [Photo/Xinhua]

A Beluga whale rehearses for new performances with trainers at Harbin Polarland in Harbin, capital of Northeast China's Heilongjiang province on Jan 24. Trainers’ performances with Beluga whales are the most popular shows during the holidays. Rehearsals for the new performance programs have been held several times in order to give spectacular performances for tourists visiting the attraction. [Photo/Xinhua]

A Beluga whale rehearses for new performances with trainers at Harbin Polarland in Harbin, capital of Northeast China's Heilongjiang province on Jan 24. Trainers’ performances with Beluga whales are the most popular shows during the holidays. Rehearsals for the new performance programs have been held several times in order to give spectacular performances for tourists visiting the attraction. [Photo/Xinhua]