I recently watched some Star Trek Deep Space Nine episodes and I noticed that the Ferengi never blink their eyes. Is it just the actors or do Ferengi as a race not need to blink their eyes?
I think it was just the episode, and/or actor -- there's nothing in Memory Alpha about it, and if you look at this clip, you see the Ferengi blink several seconds after the camera focuses on him. (At 7 seconds.) This clip has Nog blink at 1:11.
I'm sure there more, but I'm not up to the eyestrain of finding them :)