It’s science fiction meets science! Anatomika Science is an artist / biologist/ specimen preparator and they made this awesome post about Xenomorphs from the Alien franchise, which as it turns out… are ferns! Yea, you read that right, they are basically ferns and here’s why:
Source: Anatomika Science – Etsy Shop
I wish to add my proposition that the “egg” aka. ovomorph is also an adult form in itself and it’s purpose is to give birth to and nurture the facehugger until suitable hosts come into proximity. The ovomorph seems to be not only quite resilient but also has enormous longevity and can keep the facehugger alive for at least millenia, perhaps even much longer. It seems that during this period the facehugger is kept in state of suspended animation and is only activated and birthed by the ovomorph when a suitable host appears. This is an interesting parallel to the hyper-sleep technology used by humanity. More data and research is obviously needed but much vital insights into the Xenomorph species would surely be gained by examining the ovomorph stage more carefully.