A pair of somites (IMAGE) European Molecular Biology Laboratory Caption Pair of somites. Blue is a nuclear marker (DAPI) and red is an apical marker (ZO-1). Credit Ebisuya Group/EMBL Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. Adaptations must be shared under the same terms. License CC BY-NC-SA 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.