Counting damselflies (IMAGE) University of Turku Caption The number of damselflies was estimated by comparing the numbers of marked and unmarked damselflies throughout the flight season. Credit Photo: Kari Kaunisto, University of Turku Usage Restrictions Please credit the photographer when using the photos. 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.