Scientists are a step closer to discovering what determines the sex of Australia’s iconic platypus and echidna, after an international study unravelled new genes contained on mammalian Y chromosomes.
Research on how alcohol affects the behaviour of monogamous prairie voles is providing insights into sex differences in the brain functions of humans, writes Rob Brooks.
Conflict and cooperation between the sexes will be discussed at an unprecedented gathering of economic experts and evolutionary biologists at UNSW next week.
Perhaps the explanation for why women orgasm is as simple as it's a pleasant reward for doing what's good for the species, argues Rob Brooks.
Young people across NSW are being asked to speak up about sex, partying, alcohol and drugs for a Centre for Social Research in Health survey.
Some women who no longer have orgasms are being offered the chance to be part of a free drug trial which may help improve sexual function.
Men who pump themselves up by denigrating women are revealing how weak they really are, argues Lindy Edwards.
Genitalia tend to vary more dramatically than other physical traits and evolutionary biology has made stunning progress in resolving why, writes Professor Rob Brooks
Big is often better, but when spiders are of a similar size, a male's success can depend on whether he is a sprinter or a marathon runner, explains Dr Michael Kasumovic.
There is emerging evidence that internet pornography is strongly associated with risky sexual behaviour among adolescents, according to a review from UNSW's Kirby Institute.