Chloroplast and mitochondria (IMAGE) The University of Bergen Caption Painted in the same style: scientists have shown that the same principles shape the evolution of chloroplasts (top), mitochondria (bottom), and other symbionts across life. Credit Iain Johnston and Sigrid Johnston-Røyrvik Usage Restrictions By permission License Original 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.