Face Huggers and Urns

Hi, all. This is my first post, I am shedding my status as a lurker. There is something in the alien lifecycle which is nonsensical.... What relation, in a genetic sense, does the facehugger bear towards its "offspring" ? In all observable parasitic lifecycles , The parent injects its eggs into the corpus of the host. since the facehugger is the parent of the imago, or "chestburster", and the Queen, or Alien "warrior" is the parent of the egg, why the facehugger? It dies upon "inseminatinion" of the host. It appears to be a necessary stage in reproduction. It would make sense if the faechugger itself became the chestburster, but this is not the case. Instead, it acts as a motile "sperm". It is in fact the parent of the chestburster,. The queen or warrior is not. It becomes more confusing when you consider that the "cocooning" process was the original vector for turning the host into an egg, but how is the facehugger created via this process? Why wouldn't the alien directly deposit its genetic material into to the host to replicate itself? The lifecycle seems contrived, and energy inefficient. What am I missing here?

lol, juggernaut you are not missing anything because the life cycle is contrived. We must remember this is just a movie. What I am hoping is that the alien itself tinkers with the genetic material adding a little bit of itself to it's victims and transforming them into facehuggers and the seed sac that contains it. A mixing of three species and a totally alien concept? This would mean either the facehugger that attached itself to Cain was either once human or some other alien species. If it was a 3rd species like spaejockeys the genetic mixing could be exponential. I am thinking Prometheus will clear that up a bit. I have my suspicion those eggs were made from a large group of people in hypersleep on one of the ships in Prometheus but could have a very diverse history of genetic mixing that could go back eons.

Well, the facehugger does look more like a space jockey in terms of color and texture. Perhaps you are on to something.