Add Yahoo as a preferred source to see more of our stories on Google. A new study challenges the long-held belief that a baby’s sex is randomly determined, finding that parents who already have ...

If you've had two children of the same sex, you're more likely to have a third one of the same sex, according to a new study A new study challenges the long-held belief that a baby’s sex is randomly ...

A new study challenges the long-held belief that a baby’s sex is randomly determined, finding that parents who already have multiples of one sex are more likely to have another child with that sex The ...