Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)

Dancers perform dance drama "Crested Ibis" in Nantong, east China's Jiangsu Province, Oct. 11, 2015. The dance drama shows the elegance of Crested Ibis, an endangered species, and calls for animal protection. (Xinhua/Huang Zhe)