A Colony of Human ESCs (IMAGE) Cell Press Caption This is a colony of human ESCs (upper portion) extracted from a blastocyst generated by SCNT Credit <I>Cell</I>, Tachibana et al. Usage Restrictions Credit Required 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.