Brazilian porcupine (IMAGE) Woods Hole Oceanographic Institution Caption An infrared photo of a Brazilian porcupine, Rico, shows the variation in thermal energy coming from the animal. Areas where more heat escapes (also known as thermal windows) are indicated by yellow and white. By looking at this picture and identifying those thermal windows, researchers can focus on areas that will offer the clearest heart rate readings in an amplified infrared video Credit Caroline Rzucidlo//©Woods Hole Oceanographic Institution Usage Restrictions For use with proper photo credit and caption 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.