Fossil specimen Arctica islandica (IMAGE) Vrije Universiteit Brussel Caption A fossil specimen of Arctica islandica from the Lillo formation, which was used for seasonality reconstructions (image credit: Doris Smudde) Credit Doris Smudde Usage Restrictions credit creator License Original 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.