[InKunming--Yunnan] A mandrill enjoys tropical fruit at the Yunnan Wild Animal Park in Kunming, capital of southwest China's Yunnan Province, Jan. 23, 2019. (Xinhua/He Chunhao)

A sun bear enjoys tropical fruit at the Yunnan Wild Animal Park in Kunming, capital of southwest China's Yunnan Province, Jan. 23, 2019. (Xinhua/He Chunhao)

An orangutan enjoys tropical fruit at the Yunnan Wild Animal Park in Kunming, capital of southwest China's Yunnan Province, Jan. 23, 2019. (Xinhua/He Chunhao)

A ring-tailed lemur enjoys tropical fruit at the Yunnan Wild Animal Park in Kunming, capital of southwest China's Yunnan Province, Jan. 23, 2019. (Xinhua/He Chunhao)

Ring-tailed lemurs enjoy tropical fruits at the Yunnan Wild Animal Park in Kunming, capital of southwest China's Yunnan Province, Jan. 23, 2019. (Xinhua/He Chunhao)