India, regarding your spoiler comment, did you speak to Mordan on your ship after that revelation? He had lots of info on that matter when I spoke to him ... say one or two squad missions later. Basically

Spoiler Alert, click show to read: 
The Collectors were heavily modified. As organs and biological systems failed they were replaced with Reaper friendly versions. As generations passed intelligence dropped severely, as did related aspects like autonomy, and the Collectors became little better than drones. The Collectors are truly a pale shadow of the original Protheans.


Speaking of Mordan, everyone needs to ask him about art when chatting on the ship, then pick the new option which chases on off-hand comment he made during that dialogue. You will need to do his personal quest first. Loved it.