Big City Holds Empty Promise for Bats (IMAGE) University of Calgary Caption Paper co-author Dr. Joanna Coleman of the University of Calgary extracts a little brown bat from netting. Credit Grady Semmens, University of Calgary Usage Restrictions Please use 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.