A breeder feeds a rescued elephant Yang Niu in Xishuangbanna, southwest China's Yunnan Province, Aug. 12, 2018, the World Elephant Day. A parade and a special fruit feast were held here to celebrate the World Elephant Day. (Xinhua/Xie Ziyi)

Rescued elephant Yang Niu (L) enjoys the fruit birthday cake at its three-year-old birthday party in Xishuangbanna, southwest China's Yunnan Province, Aug. 12, 2018, the World Elephant Day. A parade and a special fruit feast were held here to celebrate the World Elephant Day. (Xinhua/Xie Ziyi)

Elephants enjoy a special fruit feast at the Wild Elephant Valley scenic spot in Xishuangbanna, southwest China's Yunnan Province, Aug. 12, 2018, the World Elephant Day. A parade and a special fruit feast were held here to celebrate the World Elephant Day. (Xinhua/Xie Ziyi)

Elephants enjoy a special fruit feast at the Wild Elephant Valley scenic spot in Xishuangbanna, southwest China's Yunnan Province, Aug. 12, 2018, the World Elephant Day. A parade and a special fruit feast were held here to celebrate the World Elephant Day. (Xinhua/Xie Ziyi)

Rescued elephant Yang Niu goes to celebrate its three-year-old birthday party in Xishuangbanna, southwest China's Yunnan Province, Aug. 12, 2018, the World Elephant Day. A parade and a special fruit feast were held here to celebrate the World Elephant Day. (Xinhua/Xie Ziyi)