Poll results that should be everywhere.

Poll majority: Gays' orientation can't change

(CNN) -- A majority of Americans believe that gays and lesbians could not change their sexual orientation even if they wanted to, according to results of a CNN/Opinion Research Corporation poll released Wednesday.

It's the first time in a CNN poll the majority has held that belief regarding homosexuality.

Fifty-six percent of about 515 poll respondents said they do not believe sexual orientation can be changed. In 2001, 45 percent of those responding to a CNN/USA Today/Gallup poll held that belief. In 1998, according to a CNN/Time poll, the number was 36 percent.

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In a poll conducted May 4-6 that dealt with other issues regarding homosexuality, participants were asked whether openly gay people should be allowed to serve in the U.S. military, which currently has a "don't ask-don't tell" policy on homosexuality. Seventy-nine percent of poll respondents said openly gay people should be allowed to serve in the military. Eighteen percent said they should not.

On the question of gay marriage, 43 percent of respondents in May said they would not support same-sex marriage or civil unions, which provide many, if not most, of the same legal protections as marriage. Twenty-four percent said they supported same-sex marriage, while 27 percent opted for civil unions.

But a majority of poll respondents -- 57 percent -- said gay and lesbian couples should have the legal right to adopt children. Forty percent said they should not.