Photo Maciej Mikulski University of Vaasa (IMAGE) University of Vaasa Caption Associate professor Maciej Mikulski, University of Vaasa Credit Riikka Kalmi, University of Vaasa Usage Restrictions None 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.