Scientists taking ice core samples (IMAGE) University of Oxford Caption Scientists on the Weddell Sea Expedition taking ice core samples (c) Nekton 2022 Credit Nekton. Usage Restrictions Can be used with credit. 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.