Originally Posted by Judderman
In AvP hadn't the Predators engineered the Aliens?
Can't remember if it explicitly says they engineered/created them. It's feasible they only found them, realised their great potential as training prey and captured a queen for that purpose. It could theoretically also fit the timeline, since LV-233 was abandoned for at least 2000 years. It could be "old" technology they were messing with there.