Whoops.

About 4 percent of men may unknowingly be raising a child that really belongs to the mailman or some other guy, researchers speculate in a new study.

Researchers pawed through a host of scientific articles published around the world from 1950 through last year. The perceived "paternal discrepancy rate," as it is called, ranges from less than 1 percent to as high as 30 percent in the various studies. Most researchers believe the rate is less than 10 percent.

The author's settled on four percent -- one in 25 families -- in a new article in the Journal of Epidemiology and Community Health.

Surprise! 1-in-25 Dads Not the Real Father [LiveScience.com]

Makes you wonder who some people's real father might be.


real father ?