Light-Microscopic Images (IMAGE) Karlsruher Institut für Technologie (KIT) Caption Light-microscopic images of stained embryonic mouse cells in their normal (left) and stretched states (right). The red arrows indicate the forces acting on the cells. Credit Image: Marc Hippler Usage Restrictions None 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.