Mukupirna nambensis (IMAGE) University of New South Wales Caption Artist's impression of Mukupirna nambensis living in central Australia that was much greener 25 million years ago. Credit Picture: Peter Schouten 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.