All From 1 (IMAGE) European Molecular Biology Laboratory Caption Exploring gene regulation in 20 mammals provides insights into the mammalian radiation that occurred over 100 million years ago. Credit Spencer Phillips, EMBL-EBI Usage Restrictions Credit: EMBL-EBI, Spencer Phillips 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.