Infrared thermal imaging (IMAGE) University of Turku Caption Infrared thermal imaging can detect physiological stress responses in reindeer without invasive procedures that may cause additional stress to the animal. Credit Photo: Virpi Lummaa Usage Restrictions Please attribute this image to the photographer. 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.