Researchers have put DNA evidence together with long-term genealogical data to explore questions of biological fatherhood on a broad scale among people living in parts of Western Europe over the last 500 years. The study found evidence of extra-pair paternity events turned up more often in people of lower socioeconomic status who lived in densely populated cities in the 19th century.
Click here for original story, DNA data offers scientific look at 500 years of extramarital sex in Western Europe
Source: ScienceDaily