[InKunming--Kunming]  Giant panda Sijia enjoys sunshine at the Yunnan Safari Park in Kunming, capital of southwest China's Yunnan Province, Feb. 11, 2015. The city's temperature arrived at 20 degrees Celsius in recent days. (Xinhua/Lin Yiguang)

Giant panda Sijia takes a stroll at the Yunnan Safari Park in Kunming, capital of southwest China's Yunnan Province, Feb. 11, 2015. The city's temperature arrived at 20 degrees Celsius in recent days. (Xinhua/Lin Yiguang)

Giant panda Sijia enjoys sunshine at the Yunnan Safari Park in Kunming, capital of southwest China's Yunnan Province, Feb. 11, 2015. The city's temperature arrived at 20 degrees Celsius in recent days. (Xinhua/Lin Yiguang)

Giant panda Sijia enjoys sunshine in front of a ladder pasted with Spring Festival couplets at the Yunnan Safari Park in Kunming, capital of southwest China's Yunnan Province, Feb. 11, 2015. The city's temperature arrived at 20 degrees Celsius in recent days. (Xinhua/Lin Yiguang)

Giant panda Sijia climbs down a ladder pasted with Spring Festival couplets at the Yunnan Safari Park in Kunming, capital of southwest China's Yunnan Province, Feb. 11, 2015. The city's temperature arrived at 20 degrees Celsius in recent days. (Xinhua/Lin Yiguang)