Milu, commonly known as "Sibuxiang" or "Four Dissimilarities", is one of the oldest species in China. However, it once disappeared in China, and returned to its hometown again through the "Milu Reintroduction Project" in the 1980s. Zhong Zhenyu, an expert in milu research, has been working in the Beijing Milu Ecological Research Center for 22 years in the conservation and research of milu and biodiversity, with great passion.

Out of their love and zeal for animals, Zhong Zhenyu and his team invented an anesthesia-free way to transport the milu, eliminating the risk of stress and infections from drugs.