Monkey Kingdom

A reserve in Yunnan offers insights into a rare simian species' lives - and humans. Wang Kaihao and Li Yingqing report from Diqing, Yunnan.

Early to bed, early to rise makes a man healthy, wealthy and wise - and more likely to see black snub-nosed monkeys in Yunnan province's Weixi county.

The county in the Diqing Tibetan autonomous prefecture hosts a national park created to protect the rare primates, which visitors are more likely to spot soon after sunrise.