Photo taken on March 18, 2018 shows the Toronto Zoo's four giant pandas were heading off to the Calgary Zoo after captivating visitors for a final time. The pandas, the pair Da Mao and Er Shun and their cubs Jia Panpan and Jia Yueyue, are in Canada on loan as part of the Global Giant Panda Conservation Breeding Program. Da Mao and Er Shun first came to Toronto in March 2013. Their cubs were born to great celebration in October 2015. (Photo: China News Service/Yu Ruidong)