The surprising reason why mammals engage in same-sex mating

— A new paper suggests same-sex activity may help mammals’ social relationships By Maggie Penman Same-sex sexual activity pervades the animal kingdom — it’s been observed in at least 1,500 animal species, from crickets to seagulls to penguins — but it’s still not well understood. A new paper suggests one explanation: Same-sex sexual activity may …

Study on evolution of same-sex animal behaviors underscores stigmas in research

By Swati Thapa A new study tracing the evolution of same-sex sexual behavior in mammals, using phylogenetic analyses, suggests these behaviors may have evolved in part to strengthen social bonding and relationships. Same-sex sexual behavior was observed in 261 species, which constitutes 4% of all mammal species; the research adds to a growing list of …

Taking Antibiotic After Sex Could Slash Your Risk for an STI.

— Here’s What to Know By Ernie Mundell If you’re sexually active, taking the antibiotic doxycycline within 72 hours of sex might help prevent an STI Syphilis cases are surging in the United States, making ‘Doxy on Demand’ a welcome weapon against the disease Taking doxycycline shouldn’t be a substitute for condom use, experts say …

Heterosexuality is often considered the “default” but that banner belongs to sexual fluidity

— There’s a difference between sexual orientation, sexual identity, and sexual behavior. By Kelley Nele “Something that the LGBT community always says is that your sexuality and identity can change at any time, but when it’s the other way around from gay to straight they get angry and say that it can’t.” The former quote …

Sex in the lab

— Unravelling the secrets of sex and sexuality the scientific way Leading neuroscientist Simon LeVay’s fascinating new book says sexual orientation could be determined by genes, why lizards get by without sex, and how oxytocin and vasopressin could be key to falling in love By Jane Borges Science might not have all the answers, but …

‘The sex ed class you wish you’d had’

— The influencer doctors teaching Americans the basics With schools failing American students, OB-GYNs use TikTok to tackle questions and dispel myths By Alaina Demopoulos Some of TikTok’s biggest stars aren’t teen influencers or adorable pets – they are OB-GYNs posting sex education videos. Need to know if you can continue to take antidepressants while …

‘This Book is Gay’

— Provides comprehensive, and inclusive, sexual education By Ali Velshi and Hannah Holland “This Book is Gay,” by Juno Dawson, starts with a welcome: “There’s a long-running joke that, on ‘coming out,’ a young lesbian, gay guy, bisexual, or trans person should receive a membership card and instruction manual. This is your instruction manual.” And …