It has been shown that newborns may resemble a mother’s previous sexual partner, after scientists at the University of South Wales observed an instance of telegony – physical traits of previous sexual partners being passed down to future children.
The researchers found that, for fruit flies, the size of the offspring matched the size of the first male the mother mated with – not its biological father. It is thought that molecules of the semen produced by the first partner might be absorbed by the mother’s immature eggs.
“We don’t know yet whether this applies to other species,” explains author of the study, Dr Angela Crean. Too late, Dr Crean! I’m already working my way through a mental Powerpoint presentation of my exes and trying to work out whether I can travel back in time with a box of Durex.