Snow leopards thrive under protection

Li Yuhan can still vividly remember the moment she encountered snow leopards two years ago at Sanjiangyuan, meaning "the source of three rivers", in Northwest China's Qinghai province.

"I was with a scientific survey team, and we were heading toward a mountaintop in Namsel township, Yushu Tibetan autonomous prefecture," said Li, a student at Peking University. "I saw seven snow leopards that day."

Li said it was a cloudy day, and the grassland was quite slippery.