Just signed up here, so forgive me. However I've read 80% of the Aliens EU stuff and it's a common theme throughout that the SJs and Aliens are telepathic, particularly Outbreak aka Earth Hive, and Female War. Sometimes its pheromones, sometimes its "royal jelly" causing hallucinations. DEFINITELY not saying that the creators of Prometheus are reading this stuff, but some of the news tidbits have been strikingly similar to what was done by Dark Horse in the 90's.