Two decades ago, when the gender ratio first started to skew sharply toward boys, many assumed these official figures were distorted by millions of unreported newborn girls.
The country's strict one-child policy, they reasoned, prompted a widespread number of parents to conceal their additional children to avoid harsh penalties.
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Wild China: Land of the Panda, the BBC's first ever co-production with Chinese state television, was broadcast last night.
This is not the first time panda sex has been filmed in the wild, but it is thought to be one of the most complete courtship sequences ever caught on camera.
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Our objective was to characterise the frequency, sociodemographic characteristics, and sexual risk behaviours among Chinese MSM sex tourists.
We undertook an online, cross-sectional survey of high-risk MSM throughout China in November, 2015.
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