Bird-Like Breathing System (image) University of Chicago Share Print E-Mail Caption Flesh rendering of the predator Aerosteon with the body wall removed to show a reconstruction of the lungs (red) and air sacs (other colors) as they might have been in life. Credit Drawing: Todd Marshall c 2008, courtesy of Project Exploration. Usage Restrictions This image may be used by news organizations reporting the discovery of Aerosteon. Share Print E-Mail 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.