The Golden Eagle (Aquila chrysaetos) is one of the best known birds of prey in the Northern Hemisphere. Like all eagles, it belongs to the family Accipitridae. Once distributed across North America, Europe and Asia, it has disappeared from many of the more heavily populated areas. It has a wingspan averaging over 2 m (7 ft) and up to 1m (3 ft) in body length. The Golden Eagle is one of twelve species of large eagles in the genus Aquila found worldwide. Latest research indicates it forms a worldwide superspecies with Verreaux's Eagle, Gurney's Eagle and the Wedge-tailed Eagle.