Women dating men 15 years older
This study used 21,245 participants between 18 and 65 years of age who were not involved in a close relationship.
As well as asking participants a number of questions on mate selection criteria, they also had to provide the oldest and youngest partner they would accept.
Females demonstrate a complementary pattern, being willing to accept considerably older males (on average 8 years older) and were also willing to accept males slightly younger than themselves (on average 5 years younger).Another study also showed a higher divorce rate as the age difference rose for when either the woman was older or the man was older.In August 2010, Michael Dunn of the University of Wales Institute, Cardiff completed and released the results of a study on age disparity in dating.In various cultures, older men and younger women often seek one another for sexual or marital relationships.A study released in 2003 by the United Kingdom's Office for National Statistics concluded that the proportion of women in England and Wales marrying younger men rose from 15% to 26% between 19.
Within sexual selection Darwin identified a further two mechanisms which are important factors in the evolution of sex differences (sexual dimorphism): intrasexual selection (involve competition with those of the same sex over access to mates) and intersexual choice (discriminative choice of mating partners).