Shark fin sellers in China laid thousands of fins on rooftops in early January, drawing criticism from just about everyone who doesn't eat shark fin soup.
The freshly cut fins were seen covering the roof of an industrial building in Hong Kong, spotted by environmental advocate Gary Stokes.
Stokes, who took the first photos of the drying on Jan. 1, said "that the traders usually dried their fins on the sidewalks."
He suspected that the traders went upstairs to avoid pressure from the public eye.
Hong Kong is the world center of the shark fin industry, accounting for about half of global trade, reports the Associated Press.
For more details, see the news article from the Associated Press.
Below, this video shows shark fins being dried on the street in Hong Kong: