Acipenser sinensis is a typical migratory fish in Haihe River. Every summer and autumn, the Chinese sturgeon who grew up in the sea will flock to the Yangtze River estuary, which lasts for a whole year and goes upstream for more than 3,000 kilometers for a romantic and arduous journey of love and marriage.

The following autumn, the Chinese sturgeon swam back to its homesick hometown, the fast-flowing Jinsha River, to lay eggs and breed offspring.

During the nearly two years' migration and breeding along the river and swimming to the sea, the Chinese sturgeon maintained its swimming strength by its own nutritional reserves, which was called the champion of hunger tolerance among fish.

The Chinese sturgeon entering the Yangtze River estuary provides nutrition for the development of its eggs to ensure that it is fully mature when it reaches the Jinsha River. This magical energy conversion phenomenon is still a mystery.