Species II is a 1998 American science fiction horror thriller film directed by Peter Medak. The film is a sequel to Species (1995) and the second installment in the Species series. The film stars Michael Madsen, Natasha Henstridge, Marg Helgenberger, Mykelti Williamson, George Dzundza, James Cromwell and Justin Lazard. In addition to Madsen and Helgenberger reprising their roles, Henstridge also returned for the sequel as a new character. The plot has Patrick Ross, the astronaut son of a senator, being infected by an extraterrestrial organism during a mission to Mars and causing the deaths of many women upon his return. To stop him, the scientists who created the human-extraterrestrial hybrid Sil in the original Species try using a more docile clone of hers, Eve.

Species is a 1995 American science fiction horror film directed by Roger Donaldson and written by Dennis Feldman. It stars Ben Kingsley, Michael Madsen, Alfred Molina, Forest Whitaker, Marg Helgenberger, and Natasha Henstridge in her film debut role. The film's plot concerns a motley crew of scientists and government agents who try to track down Sil (Henstridge), a seductive extraterrestrial-human hybrid, before she successfully mates with a human male.