Alien watcherJune 24, 2012There appears to be a much more ancient history and relationship between the engineers and the xenomorph.
Here on earth, there seems to be a rule of life that if a life form, like a parasite or disease, destroys the host or symbiote that it depends upon, then it will destroy itself. Not on an individual basis, but as a life form.
The xenomorph seems to do this. It seems to pretty much totally wipe out life forms that are even remotely advanced. At least up to the point of mammals. So it then leaves eggs behind. But unless you are talking in really extreme time scales, this is suicidal to the life form of the xenomorph. I mean maybe in a few billion years another life form will happen upon the eggs, and if they are still viable, the cycle begins anew. But this seems pretty chancy.
But here on earth, a parasitical life form like a bacteria or something may eventually develop, along with it's host(s) to where they can co-exist, neither destroying the other. They may even become symbiotes.
So now if the engineers are still around, but have been co-existing with the xenomorph for long enough that they don't totally kill eachother off, that could be an explanation as to why they are still there, and why that relationship would be such a part of their culture as to have murals depicting the xenomorph life cycle.
For instance, mud wasps and spiders. Mud wasps sting spiders and paralyze them, haul them off to their nests, lay eggs on them, and seal them off waiting for the egg to hatch and eat the spider. Both species thrive, and spiders are deathly afraid of the wasps. The engineers may have developed in some way, possibly technologically, possibly biologically, so that they can resist being rendered extinct by the xenomorph. That would not mean that the engineers would welcome being implanted or eaten, they would still be deathly afraid of it. And they also would likely recognize the potential of the xenomorph for xenocide. So they could develop technology to create delivery systems for the xenomorph. But, oops, it got out. That puff of air from the engineer's CDC [url=http://articles.cnn.com/2012-06-21/politics/politics_bio-germ-investigation_1_air-leak-lab-work-biosafety-level?_s=PM:POLITICS] CDC leak...[/url] section just wiped the engineers out.
Sometimes a parasite can get introduced into a new strain of a species and wipe it out, since it does not have the resistance to the parasite or disease that the other strain has.
An example would be the American Indians and smallpox. The europeans were more resistant to it, but the indians tended to be wiped out by it. Some of the europeans even used it as a weapon against the indians.
If the xenomorph had been introduced to the earth 2,000 years before the setting of the movie, man and other mammals, birds, reptiles, fish, possibly everything except plants would likely be extinct. Or new life forms might have evolved that could resist or symbiotically co-exist with the xenomorph.
Also, the engineers could actually be symbiotes of the xenomorph. It could be hardwired into the engineers to spread the xenomorphs.
Anyway, a I think it's a great movie and a great story, and as with any great story, it leaves you with opportunity to participate and create part of it for yourself.">There appears to be a much more ancient history and relationship between the engineers and the xenomorph.