David Anla Shok'
Mongoose
Shadows are telepathic. However, they don't crew their ships with Shadows, just modified people from the younger races. Once they realised their equipment's susceptibility to psychic disruption, they started using teeps as crew/pilots to counteract any telepathic disruption.
Eh. There was nothing to suggest this. I'd say, from contextual referances that the ships needed a telepath to even function and perhaps that is what made them susceptable to interferance. From what I saw onscreen, I would hazard a guess and say that the Shadows were telepathic much in the way of the Vree. What the Eye of the Shadows would have been is also conjectural. Perhaps a select few Shadows with above average teep ability? What fun. I need to drink and think on this some more.