Photo taken on March 18, 2020 shows brown giant panda Qi Zai trying natural mating with female panda An An at the Qinling research center of giant panda breeding in northwest China's Shaanxi Province. Qi Zai, the world's only captive brown giant panda, has succeeded in natural mating with a female panda for the first time, according to the Qinling research center of giant panda breeding in northwest China's Shaanxi Province. The male brown-and-white panda is 11 years old, the equivalent of a human in young adulthood. Qi Zai started receiving training in natural mating in 2018 and successfully finished the task on March 18 with a female panda named An An, said Zhao Pengpeng, senior veterinarian of the center. However, Zhao pointed out that successful mating does not mean successful pregnancy, as panda keepers usually have no idea whether female pandas are actually pregnant up until they give birth. (Photo by Zhang Danhui/Xinhua)
