Two Himalayan marmots are observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 1, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Peng Jiansheng) 

Triplophysa microps, a high-altitude loach species, is observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, June 29, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Lei Bo)

Gyps himalayensis, a falcon species, is observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, June 30, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Peng Jiansheng)

Two Tibetan foxes (Vulpes ferrilata) are observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 9, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Guo Liang)

A white eared pheasant (Crossoptilon crossoptilon) is observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 1, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Dong Lei)

 An ibisbill (Ibidorhyncha struthersii) is observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 10, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Dong Lei)

Ptychobarbus kaznakovi, a cyprind fish species, is observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 1, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Lei Bo)

Two photographers from IBE (Imaging Biodiversity Expedition), a wildlife photo agency, work during a biodiversity research in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, June 30, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/IBE/Peng Jiansheng)

A flock of kiangs (Equus kiang) are observed in the drainage region of the Lancang River's headwaters in Yushu, northwest China's Qinghai Province, July 8, 2014. A recent biodiversity research participated by a number of scientists and wildlife photographers has recorded 370 species in the headwaters drainage region of the Lancang River, or the Mekong. (Xinhua/Shen Bohan)