Giant panda Da Mao is seen at the Toronto Zoo in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at the Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Giant panda Da Mao is seen at the Toronto Zoo in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at the Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Chinese Ambassador to Canada Zhang Junsai delivers a speech at the opening ceremony of the Toronto Zoo's Giant Panda Experience in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at he Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Giant panda Da Mao is seen at the Toronto Zoo in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at the Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Chinese Ambassador to Canada Zhang Junsai delivers a speech at the opening ceremony of the Toronto Zoo's Giant Panda Experience in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at the Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Two boys take photos of Giant panda Da Mao at the Toronto Zoo in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at he Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Giant panda Da Mao is seen at the Toronto Zoo in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at he Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)

Canadian Government House Leader Peter Van Loan delivers a speech at the opening ceremony of the Toronto Zoo's Giant Panda Experience in Toronto, Canada, May 16, 2013. About 200 VIP guests attended the opening ceremony of the Giant Panda exhibition at he Toronto Zoo on Thursday. The exhibit features two pandas from China, Da Mao and Er Shun, who will be staying in the Toronto Zoo for five years before they are moved to the Calgary Zoo for another five years in Canada. (Xinhua/Ma Dan)