EnvironmentMussel numbers in the river Thames have dropped by up to 99 per cent Populations of native mussels in the river Thames have dropped massively between 1964 and 2020, possibly because of the effects of pollution and invasive species News
LifeFear of predators means sparrows struggle to raise chicks to adulthood Sparrows on a collection of Canadian islands change their behaviour when they fear predators are nearby, and an experiment shows this reduces their ability to raise their offspring to adulthood News