Tattooing fish may not be a smart move

Goldfish with Chinese tattoos on their bodies swim about during a trade fair at Haikou, capital city of South China's Hainan province, Dec 14, 2011. The tattoo is said to be the result of an injection with special medicine into the fish, and it takes half a year to form. But the move was criticized by visitors, who deem tattooing fish as cruel and against the laws of nature. [Photo/CFP]