Xenomorph XX121,[3][4] commonly referred to as simply the Xenomorph[5], known colloquially as the Alien, and classified as XX121, is a highly aggressive endoparasitoid extraterrestrial species. The Xenomorphs are vicious predatory creatures with no higher goals than the propagation of their species and the destruction of any life that could pose a threat to them. Like wasps, bees, or ants, Xenomorphs are eusocial, with a fertile Queen breeding a host of subordinate castes. The creatures are know