A farmer in China has spoken of his surprise after one of his ducks turned out to have three legs and four feet.Yang Fuyong, of Linchuan County, Guilin, southern China's Guangxi Province, said the duck was one of a batch of 600 he had bought as ducklings.While vaccinating them, he noticed one of them had one too many legs - and two too many feet.He has since sold the ducks but kept the unusual one for a pet."I have been raising ducks for more than 10 years but I have never seen anything like this before," he said."It has an extra leg behind the other two and that leg has two feet. I'm going to carry on raising it to see how it does."An official at the local livestock husbandry station said the duck was almost certainly the result of a genetic mutation.Source: orange news