How do Protoss Speak if they lack mouths? I always chalked it up to telepathy. But, if the race comminicates telepatically, why would they have evolved ears? And, if they don't have ears, how do they communicate with humans? Can they just read their minds? This same ability would be very useful in combat... And, if the can communicate telepathically, why do they need comm-links established between ships before each mission in the campain?