Wuhan railway policemen Ding Yan (L) and Zhang Ning train police dogs "Pi Te" (L) and "Heng Heng" in Wuhan, capital of central China's Hubei Province, Jan. 15, 2019. "Pi Te", a Labrador for searching for explosive devices, was born in March 2018. It has been trained for 10 months and will cooperate with German shepherd "Heng Heng" for railway safety during the upcoming Spring Festival travel rush. (Xinhua/Cheng Min)