AgentNein said:
Wereduck said:
AgentNein said:
BurnedOutMyEyes said:
AgentNein said:
BurnedOutMyEyes said:
If I'm not mistaken, the xenomorphs are actually genetically engineered weapons of a sort.
As in, they were deliberately created to be literal ruthless killing machines, going above and beyond the call for brutality that a simple beast struggling for survival would operate by.
Can we all just pretend that Prometheus never happened?
I'm pretty sure this was a thing a long time before Prometheus was even a shadow of a thought.
Hmm, I don't remember that in any of the movies pre Prometheus, but perhaps I've forgotten.
Pretty sure that was never stated but it was my pet theory from
Aliens on. It simply didn't make any sense for an animal to be that deadly as a consequence of evolution - especially when they go into hybernation as soon as they've exterminated all other life in their area.
I'm intrigued. Why doesn't it make sense to you that they'd be so deadly as a consequence of evolution? I mean, if they were an alien animal that came about naturally, we know nothing of their environment and ecosystem to say what they've delt with on a normal day in their world. Maybe wherever they're from they're that worlds analogue of a lion, or even a house cat. Of course you could be talking about the fact that they seem perfectly suited to use humans as a food source/incubation system. Which IS exceedingly unlikely for an animal that's had no contact with humans throughout its evolutionary history. I've always just chalked that up to writers who've got no clue, but bio weapons made specifically to target humanity (or maybe just bio weapons designed around the idea of being extraordinarilly adaptive with it's food sources/ procreation sources) makes a certain sense. Imagine the need to quickly wipe out a planet's life, for whatever silly reason, send in a species that can essentially convert everything to itself, and as long as you've got a rock solid kill switch/removal system for them then bam, shiny new planet freshly scrubbed of all that messy global ecosystem.
More than anything else it's their lethally parasitic reproductive system that made me think there had to be a third party involved. Killing your host is a huge evolutionary no-no - ideally a parasite should cause as little inconvenience as possible, even form a symbiotic relationship like our mitochondria. The more you trouble your host the harder they'll try to protect themselves, and if you actually
kill them you're screwed either way - if they DO protect themselves you can't find a host and die / if they CAN'T protect themselves you kill them until you run out of hosts and die. Now for an LV-426 xenomorph the host is only necessary for reproduction but in evolutionary terms reproduction is the whole ballgame - a parasite that co-exists with host can breed more easily, therefore more often, and will thus out-compete a lethal variety. A lethal parasite can crop up from time to time as a mutation but it's an evolutionary dead-end, a strain that doesn't kill it's host will drive the old one to extinction as soon as it appears.
The acid blood is another big problem though - very scary and useful for melting holes through steel but in practical day-to-day terms it just wouldn't work. First; it would require the xeno's entire physiology to be built around highly acidic conditions. All of the xenos' internal organs would have to be extremely resistant to chemical reactions and if if an organism's insides are extremely non-reactive then it becomes very difficult to conduct the chemistry the organism needs to
live. Second; if the xeno had a naturally acid-proof internal physiology that would mean that the animals it developed from would also be naturally acid-proof and the acid blood would be worthless as a defense. Now obviously not everything needs to have an adaptive function in a living organism but since acid blood seriously complicates the xeno's biochemistry and offers no benefit in return you wouldn't expect to see something like that in nature. Third; even on Earth there are much simpler ways to keep other creatures from eating you like toxic secretions in the skin or harmful/disgusting squirt-glands. I'd point out that although a poison arrow frog or monarch butterfly has to get bit before it's attacker gets punished, both llama spit and skunk musk permit the animal to use it's natural defense to avoid injury entirely - definitely better than acid blood which accomplishes nothing until the xeno's blood starts getting splattered around. Acid blood only really comes into it's own when your species is living among creatures from a completely different evolutionary lineage and getting violently dismembered around armored barricades ...and neither of those happen often in nature.
For the most part I like the idea of LV-426 xenomorphs as macroscopic bio-weapons because although their defining attributes are evolutionarily impractical and ecologically unsustainable they're also excellent for creating fear and exterminating all other life. If they were deliberately made to mess up other people's planets then it all makes sense.