Sarah Donelan (IMAGE) Smithsonian Caption Sarah Donelan, a postdoc at the Smithsonian Environmental Research Center, studies how animals adapt to threats: animals like eastern oysters in the Chesapeake or these dogwhelk snails (Nucella lapillus) in Massachusetts. Credit (Credit: Chris York) Usage Restrictions This photo is freely available for media to use in accordance with the Smithsonian Terms of Use (https://www.si.edu/termsofuse), provided the credit line is included as written above. 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.