A science fiction horror film franchise, focusing on Lieutenant Ellen Ripley (Sigourney Weaver) and her battle with an extraterrestrial life-form, commonly referred to as "the Alien". Produced by ...

A 2017 study found that over one third of all introductions in the past 200 years occurred after 1970 and the rate of introductions is showing no sign of slowing down. In fact, a 2020 study predicts ...