A teacher introduces the knowledge of wild animals via livestreaming class on internet at No. 10 elementary school in Zhangshu City, east China's Jiangxi Province, March 2, 2020. World Wildlife Day is observed on March 3 to raise the awareness of the world's wild animals and plants. (Photo by Zhou Liang/Xinhua)

A teacher introduces the knowledge of wild animals via livestreaming class on internet at No. 10 elementary school in Zhangshu City, east China's Jiangxi Province, March 2, 2020. World Wildlife Day is observed on March 3 to raise the awareness of the world's wild animals and plants. (Photo by Zhou Liang/Xinhua)