Men 'prefer relationships to sex with multiple partners'
Men tend to enjoy being in long-term relationships more than taking different women to bed each week.
This is the suggestion of a new book by Wake Forrest University research psychologist Andrew Smiler, which claims males who yearn for multiple short-term partners are in the minority.
In an interview with Salon, Mr Smiler noted men have always tended to prefer being with one woman, as this makes it more likely for their genes to be successfully passed on to future generations.
Guys might therefore wish to stock up on condoms when entering a relationship if they intend on being in it for the long haul.
The book is entitled Challenging Casanova: Beyond the Stereotype of the Promiscuous Young Male and Mr Smiler explained: "If you want your genes to go beyond that next generation - beyond your children to your grandchildren - then your odds are better if you actually stick around."