Introduction to the Rare Aquatic Creatures Exhibition in the Yangtze River Basin: The Yangtze River is the largest river in China. It is not only the mother river on which Chinese people depend for survival, but also the habitat and breeding place for all life forms along the river. The Yangtze River Basin is extremely rich in biodiversity, with biological species accounting for more than half of all species in China, including more than 300 species of fish.