Potential animal embryo (IMAGE) Uppsala University Caption A potential animal embryo, approximately 160 μm (micrometres) in diameter, from the Portfjeld Formation in Greenland. Only in the Doushantuo Formation in southern China have similar finds have come to light. Credit Sebastian Willman Usage Restrictions This image may only be used when reporting about Sebastian Willman's research. 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.