I'm on Noveria and I had completely forgot Bioware's bungling. (I know Pike's not there yet so I'm gonna spoiler.)

(SPOILER)They make a HUGE deal about the monstrous creatures you encounter and your characters freak out, while attempts to get to the truth are obstructed by bureaucracy and stuff, e.g. Mira refusing to say anything. They're trying to build up a big reveal to the fact that it's the Rachni. Problem is the first time you aim at one of them - which happens immediately after a very brief cutscene introducing it - it tells you exactly what they are. 'Rachni Soldier.'"

So... great job Bioware