Many Native American cultures in the United States have traditions of two male twin heroes. The Heroes Twins (or God Boys) are recurring characters from the mythologies of the indigenous peoples of the Americas. The specifics of each myth vary from tribe to tribe, but each story has a pair of twins (usually with magical powers) who were born when their pregnant mother was killed by the tale's antagonist. Twins were considered unnatural in many cultures of this region, with beliefs about them having supernatural abilities.