Regarding the transformation of the Aliens, before departing for Earth, Fang Zheng had already discussed the matter with Mirune and had a rough strategy in mind.
In the "Alien" series, the Aliens themselves have a system: the Alien Empress is responsible for laying eggs, which produce Facehuggers; these Facehuggers then attack hosts, and from them, new Aliens are born, which in turn increase the number of their kind.
