Twice a week, the Guardian brings you the latest science and environment news
Social affairs correspondent Robert Booth tells Madeleine Finlay why a class of synthetic opioids called nitazenes, first developed in the 1950s, is leading to a worrying number of fatal overdoses in the UK. And she hears from toxicology and addiction specialist Dr Joseph D’Orazio about a tranquilliser called xylazine
What apes can tell us about the origins of teasing
We all know people who find it hilarious to prod and poke, pinch and tickle, all in the name of fun. But are humans the only ones who like to tease each other? Or are other animals in on the act? Ian Sample talks to Prof Erica Cartmill about her work on apes and teasing and asks, given how annoying teasing is, why do a
Retinol, acids and serums for kids? A dermatologist’s guide to age appropriate skincare
Last month the British Association of Dermatologists warned that children as young as eight years old were using potentially damaging anti-ageing skin care products. Madeleine Finlay speaks to consultant dermatologist Dr Emma Wedgeworth about where this trend has come from, what damage these products might be causing t
Why are we still waiting for a male contraceptive pill?
Despite research into a male contraceptive pill starting around the same time as its female counterpart, no product has ever made it to market. But that could soon change, with a new non-hormonal male pill entering human trials in the UK late last year. Ian Sample speaks to bioethicist Prof Lisa Campo-Engelstein of the
What happens now bird flu has reached the Antarctic?
The moment scientists had been dreading arrived late last year, when H5N1, or bird flu, was found for the first time in the Antarctic. Last week a king penguin on the island of South Georgia became the first in the region to be suspected to have died from the disease. The Guardian’s biodiversity reporter, Phoebe Weston
Ian Sample and science correspondent Hannah Devlin discuss the big science stories of the week – from news that Elon Musk’s Neuralink has implanted its first chip into a human, to research suggesting Alzheimer’s can pass between humans in rare medical accidents, and the revelation that Rishi Sunak begins each week with