6. The Xenomorphs
- Fictional: Alien Franchise
The Xenomorphs are a powerful endoparasitoid extraterrestrial species. Yet unlike other alien species in fiction, this species does not have a world to itself or even a major culture. They are not technically sound, so they lack a lot of the major technology other alien species possess too. The Xenomorph species is primal and predatory with only one goal in mind. To self-preserve the lives of their species and eliminate all other lifeforms on the planet they wish to call home.