Crayfish in an Artificial Stream (IMAGE) Cary Institute of Ecosystem Studies Caption The spinycheek crayfish used in the study were collected from a local stream. Credit AJ Reisinger Usage Restrictions May be used to promote the press release this image is attached to. 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.