White-Footed Mouse, Gault Nature Reserve (IMAGE) McGill University Caption Biologists document changes in teeth and skull structure in two species in southern Quebec over past 50 years. Credit McGill University, Virginie Millien Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.