A leopard is spotted by an infrared camera along the valley of the Nujiang River in Dengqen county, Qamdo city, southwest China’s Tibet Autonomous Region. (Photos: People's Daily online)

A leopard is spotted by an infrared camera along the valley of the Nujiang River in Dengqen county, Qamdo city, southwest China’s Tibet Autonomous Region.

A snow leopard is spotted by an infrared camera along the valley of the Nujiang River in Dengqen County, Qamdo city, southwest China’s Tibet Autonomous Region.

A brown bear is spotted by an infrared camera along the valley of the Nujiang River in Dengqen County, Qamdo city, southwest China’s Tibet Autonomous Region.

A Chinese serow is spotted by an infrared camera along the valley of the Nujiang River in Dengqen County, Qamdo city, southwest China’s Tibet Autonomous Region.