HealthWhy some people with HIV can now ditch condoms If you take your meds regularly, and you are monogamous, two new studies show a negligible chance of passing on HIV. How will this change lives? Insight
LifeWe need smarter ways to probe primate brains Forget language: in Monkeytalk, primatologist Julia Fischer argues creative experiments are needed to learn about primates’ intelligence – before they vanish Culture