Cartoon Rendering of a Mouse Embryo (Left) and a Mouse Gastruloid (image) Hubrecht Institute Share Print E-Mail Caption Pink-blue blocks represent somites, the embryonic precursors of the vertebrae and muscles. Credit Núria Taberner, ©Hubrecht Institute Usage Restrictions The image may only be used with the appropriate caption and credit. Share Print E-Mail 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.