Who needs a unifying theme anyway?

Monogamy is expected by 95% of couples, yet a survey, by the Social and Economic Sciences Research Center at Washington State University, of sexually active Seattle residents aged 18-39 found 27% of men and 18% of women reported that during their most recent sexual relationship, they had had sex with at least one other partner. Is this shocking? If you’re a regular tabloid reader, probably not. More astonishingly, in the 1990s, Robin Baker, then an evolutionary biologist at Manchester University, discovered that 8% of children are conceived when a woman has recently slept with another man. Another statistic reveals that 10% of children in Britain don’t belong to the men they’re supposed to. This, says Baker, “is normal behaviour for a mammal”.