Colbert guest explains the science behind 'gaydar'
Published: Wednesday June 27, 2007
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The bulk of scientific research shows that being gay is a natural condition, not a choice, a guest on Stephen Colbert's show who wrote a recent article about the science of "gaydar" said Tuesday.

David France, whose article appears in New York magazine, says certain physical traits -- such as one's index finger being longer than his or her ring finger -- are more prevalent among gay people than the population at large.

"The relationship is suggestive to people that there is some sort of a genetic or pre-natal cause to sexual orientation," France says, much to the chagrin of Colbert's conservative persona.

"But we know that's not true, we know homosexuality is a choice," Colbert says. "If you choose to be gay does this (physical change) happen to you overnight. Is it like the American Werewolf in London?"

The following video is from Comedy Channel's Colbert Report, broadcast on June 26.