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.

Undoubtedly, Xenomorphs are still one of the freakiest monsters ever to be released on big screens. The biomechanical design, the green acid blood, and a never-ending hunger for blood still give fans ...