A snail is seen on a leaf at the Hanyao relics park in Xi'an, capital of northwest China's Shaanxi Province, July 6, 2017. (Xinhua/Zhang Shuzhong)
A snail is seen on a leaf at the Hanyao relics park in Xi'an, capital of northwest China's Shaanxi Province, July 6, 2017. (Xinhua/Zhang Shuzhong)