On the frontlines of China's efforts to protect wild elephants
The lush forests of southwest China's Yunnan province are home to the country's only wild elephants.
An endangered species, their numbers fell to just 170 in the 1980s. Thanks to the efforts of conservationists, officials and locals, more wild elephants now roam the hills of Yunnan.
And in 30 years’ time, they could be as many as 500.