William A. Rapley, Executive Director of Conservation, Education, Research and Wildlife of the Toronto Zoo, Josh Vinegar, Councillor of Board of Management of the Toronto Zoo, Yu Zeying, Vice General Secretary, Chinese Association of Zoological Gardens, Zheng Guangda, Vice President of Chinese Association of Zoological Gardens and Robin Hale, Chief Operating Officer of the Toronto Zoo (L-R) pose for photos during the first birthday celebration of the first Canadian-born twin giant panda cubs at the Toronto Zoo in Toronto, Canada, Oct 13, 2016. [Photo/Xinhua]