The Praetomorph was created by the android David 8's experiments using the Chemical A0-3959X.91 – 15 pathogen as a catalyst on tissue samples harvested from Elizabeth Shaw, deceased Engineers, and Neomorphs spawned from the native …

After Covenant captain Oram shot down a Neomorph, an enraged David tricked the former into following him to his workshop where he had been experimenting on the pathogen. David brought the captain further down, revealing a chamber filled with larg…

While comparable to a Xenomorph Drone, an adult Praetomorph possessed several prominent differences that set it apart from its mainstream counterpart. Notably, it lacked any biomechanical features and its limbs were longer, thinner and skinless, wi…

Ovomorph
Like members of the Xenomorph XX121 species, the Praetomorph had a complex and parasitical life-cycle that required a host. The process itself was identical to that of a standard Xenomorph, with the cr…