A Tibetan antelope is seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelopes are seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelopes run on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelopes are seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

A Tibetan antelope is seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelope are seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelopes are seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

Tibetan antelopes are seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 28, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

A Tibetan antelope is seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

A Tibetan antelope runs in snow in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

A Tibetan antelope is seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

A Tibetan antelope is seen on the grassland in the Qiangtang Nature Reserve, southwest China's Tibet Autonomous Region, June 26, 2014. Now nearly 200,000 Tibetan antelopes live in the nature reserve in north Tibet. [Photo/Xinhua]

                                                                       Editor: Julia Qin