ERRy Fat (image) Salk Institute Share Print E-Mail Caption Infrared images indicate the much warmer temperatures of a normal mouse (left) compared to a mouse unable to make ERR gamma (right). Credit Salk Institute Usage Restrictions with credit and related coverage. Share Print E-Mail 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.