Giant Panda Mei Xiang snacks on bamboo at the Snithsonian's National Zoo in Washington, in this handout image taken on April 19, 2015 and obtained on August 10, 2015. The National Zoo's giant panda Mei Xiang is showing signs of being pregnant, the Washington zoo said on Monday, in a good development for the endangered species. (Photo by Connor Mallon/Reuters/Smithsonian's National Zoo)
