Boat traffic alters marine megafauna behavior, stress and population trends, global analysis finds

A new study provides a comprehensive global synthesis of how vessel traffic affects large marine wildlife, including whales, dolphins, seals, manatees, sea turtles, sharks and rays. The study, ...
Nature

How an exercise-activated enzyme helps to keep the brain young

A protein reinforces the blood–brain barrier, which becomes leaky with age. Exercise prevents brain ageing and memory loss by strengthening the blood–brain barrier, the structure that keeps harmful ...