A breeder takes care of pandas at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo. (newsphoto)
Breeders feed pandas on the snow at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo. (newsphoto)
Breeders feed pandas on the snow at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo. (newsphoto)
Vets examine panda cubs at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo. (newsphoto)
A breeders feeds a panda cub at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo. (newsphoto)
Vets examine a panda cub at the Research and Conservation Center for Giant Panda in Wolong Nature Reserve, southwest China's Sichuan Province in this undated file photo.(newsphoto)