Health
The clap trap: Did ancient STIs make humans monogamous?
Biologist David Barash weighs up the latest explanation for one of human evolution's enduring mysteries and finds that there are more plausible alternatives
News
Environment
Playing Cupid to get reluctant corals in the mood for love
Features
Humans
Dinosaurs took part in building competitions to attract females
News
Health
US drops lifetime ban on gay men donating blood
News
Environment
Pandas don’t lack sex drive, they just need to fancy each other
News
Health
Obese men found to make sperm with thousands of modified genes
News
Environment
Howler monkeys have to choose between big balls and big bawls
News
Health
‘Gay test’ fear mustn’t derail work on sexuality’s genetic basis
Opinion
Humans
Top exoplanet hunter keeps job despite serial sexual harassment
News
Earth
Bean beetle displays spiky penis before damaging sex
The traumatic sex life of a common beetle has been caught on camera in a television programme nominated for a wildlife film festival award
Regulars
Humans
Speed dating shows arranged bird marriages lead to bad parenting
News
Humans
How to navigate the moral maze of the Ashley Madison leak
Opinion
Health
Female ‘Viagra’ has been approved: Here’s what you need to know
News
Humans
See this odd octopus mate beak-to-beak and hunt like no other
Regulars