Barnacle Bands (IMAGE) Brown University Caption Barnacles group and presumably compete in part based on temperature, but in an experiment where reserachers experimentally altered temperature it did not affect competition as expected. Credit Emily Lamb/Brown University & ECIM Usage Restrictions 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.