Freya and Etu (IMAGE) Frontiers Caption Freya (dog) and Etu (wolf) at the Wolf Centre Credit Rooobert Bayer Usage Restrictions Please credit artist, Rooobert Bayer 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.