Photos taken by infrared cameras and released by the Shanshui Conservation Center in Beijing, on Oct. 23, 2017 show snow leopards inhabiting the headstreams of the Lancang River in Zadoi County, Yushu Tibetan Autonomous Prefecture, Qinghai Province. October 23 is World Snow Leopard Day. The county has worked with the Shanshui Conservation Center to install nearly 100 infrared cameras and trained 41 locals while at least 24 snow leopards and seven leopards have been monitored. (Photo provided to China News Service)