Scientists said Wednesday they had amassed the first evidence to back theories that people fall into two broad categories—promiscuity or faithfulness—when it comes to sex.
There is a clear correlation between the size of the testicles of male primates and the proneness to infidelity of females. Learn more about sex, sperm and infidelity at the anniversary exhibition Sexus.
New research from the University of East Anglia shows that an evolutionary force known as 'sexual selection' can explain the persistence of sex as a dominant mechanism for reproducing offspring.
What do you get when you mix theorists in computer science with evolutionary biologists? You get an algorithm to explain sex.
Females play a larger role in determining paternity than previously thought, say biologists in Syracuse University's College of Arts and Sciences. Their findings are the subject of a new paper titled "Female mediation of ...
We've heard the clichés: "It was love at first sight," "It's inner beauty that truly matters," and "Opposites attract." But what's really at work in selecting a romantic or sexual partner?
(Phys.org)—Sex or no sex? Using various species of the evening primrose (Oenothera) as his model, Jesse Hollister, a former University of Toronto post-doctoral fellow, and his colleagues have demonstrated strong support ...
'Attractive' male birds that mate with many females aren't passing on the best genes to their offspring, according to new UCL research which found promiscuity in male birds leads to small, genetic faults in the species' genome.