A recently-published paper in the Journal of Animal Ecology has discovered that the grey squirrel (one of the most impacting alien invasive species in Europe) causes an increase in chronic stress in the native red squirrel. Lead author Dr Francesca Santicchia is a research fellow at the University of Insubria in Italy. She had studied the relationships among parasites, physiological stress, and personality in grey squirrel … Continue reading Stressed-Out Squirrels