Cameratrap2 (IMAGE) Washington State University Caption Researchers placed camera traps along hiking trails in Glacier National Park during and after a COVID-19 closure. They found that 16 out of 22 mammal species changed the way they accessed areas when humans were present. Credit Mammal Spatial Ecology and Conservation Lab, Washington State University Usage Restrictions For use only with stories related to this press release License Original 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.