Darla Zelenitsky, University of Calgary (IMAGE) University of Calgary Caption Darla Zelenitsky is the lead author of a study on the sense of smell in dinosaurs and birds. Credit Courtesy of 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.