Species is a science-fiction horror series, with the first film coming out in 1995, revolving around alien-human hybrids after extraterrestrial DNA has been sent to Earth. Unfortunately, the hybrids gradually prove to be dangerous and risk destroying the human race through copulation. The initial story revolves around a hybrid dubbed “Sil,” played by actress Natasha Henstridge, with other similar hybrids serving as the focal characters of the latter films.