Wild yaks roaming about on the lush grassland of Changtang National Nature Reserve. [Photo: Xinhuanet]
(Xinhua News Agency August 11, 2009)
![Wild yaks roaming about on the lush grassland of Changtang National Nature Reserve. [Photo: Xinhuanet]](http://images.china.cn/attachement/jpg/site1007/20090811/000d87ad3cdd0beb0d2808.jpg "Wild yaks roaming about on the lush grassland of Changtang National Nature Reserve. [Photo: Xinhuanet]")
