Long-term musical training may mitigate the age-related decline in speech perception by enhancing cognitive reserve, according to a study published July 15^th in the open-access journal PLOS Biology by Claude Alain from the Baycrest Academy for Research and Education, Canada, and Yi Du from the Chinese Academy of Sciences.

Preschool teachers shape young children’s development, but how their expertise evolves remains less understood. Using video-cued ethnographic interviews, a researcher studied 112 preschool educators across Japan, China, and the United States to explore what drives professional growth. The study revealed cultural differences in mentoring, collaboration, and motivation. These findings led to a new framework for understanding how early childhood teachers change, offering insight into improving teacher development across diverse educational systems.

Scientists from the Marine Biological Association and the University of Plymouth have revisited turn-of-the-century forecasts about the many and varied threats they thought were likely to face the world’s shorelines in 2025. Their new study highlights that many of their forecasts were correct, either in whole or in part, while others haven’t had the impacts that were envisaged at the time. They have also charted some of the other threats to have emerged and/or grown in significance since their original work, with notable examples including global plastic pollution, ocean acidification, extreme storms and weather, and light and noise pollution.