Fowl PlayFrom dinosaur to dinner plate, Sally Coulthard tells the fascinating and sometimes shocking story of the domestic chicken. Earth is home to 23 billion chickens, at least ten times more than any other bird. For every human on the planet, there are three chickens. Despite being capable of flying only a few metres, this most adaptable animal has somehow managed to conquer the world. In Fowl Play, Sally Coulthard probes every aspect of the genus Gallus: