system
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human
[Alien] did the aliens build their ships or are the ships some kind of biomechanical thing?

I've recently read some comics from the Alien franchise, and i was surprised to know about Alien ships and "black goo" (the comic is "Aliens: Fire and Stone") that seems to be artificially made, this surprised me, because i always thought the first Xenomorphs just stowed away in an exploration human ship, i did not knew they had things like spaceships,  


so this brings me to ask, do (or did) the Xenomorphs have a civilization? do they grow ships like Warhammer 40k Tyranids? do they use ships from a former Civilization from another species?
gpt
It's a little unclear. But the Xenomorph is generally considered to be an artificial lifeform created by another species. Of the 4 main continuities only fire and stone says the Xenomorphs were created by the engineers as a failed end goal of the black goo acceleratant. They do not build anything technologically advanced but act more as rats on ships killing and spreading across the galaxy by chance and happenstance or by design by other races.