Why do some men have a stereotypically "gay voice," while others don't? In this six-minute documentary, David Thorpe explores the question for the New York Times, consulting linguists in order to figure out the leading theories about this linguistic pattern. There's no firm conclusion here, but there are some interesting theories.
(And if you don't know what I mean when I refer to a "gay voice," watch the trailer for The Birdcage and listen to the male voices, particularly Robin Williams, who code-switches based on circumstance.)
If you've ever wondered why some men "sound gay," take a few minutes to watch this.