Gray langurs take turns to act as guard

The scene of gray langurs standing sentry in rotation was photographed by workers at a gibbon-monitoring station in the Wuliang-Ailao nature reserve. Why not play the video for a closer look?

As an animal put under first-class state protection in China, gray langurs are living in the lush Wuliang and Ailao mountains in southwest Yunnan province, as well as in the northern areas of Myanmar, Thailand and Vietnam.

Source: Yunnan Net; Trans-editing by Wang Qing