Transposons (IMAGE) University of Barcelona Caption The domestication of these transposons was an important process in the development of the neocortex in the group of placental mammals. Credit GENOME BIOLOGY Usage Restrictions The image may only be used with appropriate caption or credit. 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.