A scaling law relates the expected number of mutants to the total population size of cells in a spatially constrained but growing population, which could help clinicians predict when cancers or bacterial infections might develop resistance to treatment.

A new University of Portsmouth-led study has investigated how electromagnetic fields (EMFs) from submarine power cables affect crabs, raising important questions about the impact of renewable energy infrastructure on marine life.

Could a simple blood test reveal how well someone is aging? A team of researchers led by Wolfram Weckwerth from the University of Vienna, Austria, and Nankai University, China, has combined advanced metabolomics with cutting-edge machine learning and a novel network modeling tool to uncover the key molecular processes underlying active aging. Their study, published in the Nature Journal npj Systems Biology and Applications, identifies aspartate as a dominant biomarker of physical fitness and maps the dynamic interactions that support healthier aging.

For decades, it was thought that while the brain orchestrated male sexual behaviour – arousal, courtship, and copulation – the spinal cord merely executed the final act: ejaculation. But a study from the Champalimaud Foundation (CF) challenges that tidy division. It reveals that a key spinal circuit is not only involved in ejaculation but also in arousal and shaping the choreography of sex, adding a surprising new dimension to our understanding of sexual behaviour in mammals.