Amber Bead Samples (IMAGE) PLOS Caption These are amber bead samples studied in this paper Credit Odriozola et al., 2019 Usage Restrictions CC-BY: redistribution permitted with credit. 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.