A Tibetan brown bear at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
Wild donkeys at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
Wolves at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
A guanaco yawns at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
Sika deer at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
Porcupines at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)
A manul at the Qinghai-Tibet Plateau Wildlife Zoo in Xining City, Qinghai Province, March 14, as temperatures gradually rise. (Photo: China News Service/Luo Yunpeng)