A male animal can only produce a male clone, and vice versa – at least, that was the case until now. In a breakthrough they ...

U.S. officials have sometimes eliminated access to gender-related treatment and dissolved measures meant to shield ...

Each person is a mosaic of sex-related and postpubertal biological traits that vary in their degree of femaleness and maleness.

The sex reversal technique could be used to help rescue endangered species, say the researchers behind the work.

The Justice Department has activated a special court that's never before been used to argue for the removal of a woman accused of supporting the Islamic State. Prosecutors detailed some of the ...

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