Some exceptionally unsettling elements were thrown together to create the Xenomorph when it first appeared in Ridley Scott's 1979 horror sci-fi, "Alien." Spliced from the nightmares of artist H.R.

Add Yahoo as a preferred source to see more of our stories on Google. The "Alien" franchise is an undeniable classic — a staple of the sci-fi/horror genre. The series features humans fighting for ...

The "Alien" franchise is an undeniable classic — a staple of the sci-fi/horror genre. The series features humans fighting for their lives as they're pitted against killer aliens with acidic blood.

This shocking Alien franchise theory will forever change how you watch every Alien movie since James Cameron's 1986 sequel.