Highlights: How do croakers turn from silver to yellow?
The wild yellow croaker was a scarce species in southeast China's Fujian Province. In the daytime, it is silver-white. At night, the golden skin gland under each scale in the lower part of the side of the large yellow croaker can make the fish golden. Join CGTN reporters Zhao Yunfei and Yang Xinmeng at a marine farm and witness the fish turning from silver to yellow.