Xenomorphs have a pretty simple method of reproducing:
The Queen lays an egg.
The egg hatches a Facehugger.
The Facehugger attaches itself to a host organism’s face and impregnates it with a Xenomorph embryo which later on bursts out of the host’s chest and then quickly grows into an adult Xenomorph and tries to kill all nearby non-Xenomorphs.
Simple.
The [...]
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