Digital tree twin (IMAGE) Purdue University Caption Bedrich Benes and his colleagues created this model showing the intricate branching structure of a mature acacia tree using their Interactive Invigoration framework. Credit Image courtesy of Bedrich Benes Usage Restrictions News organizations may use this image in reports about the work of Purdue University’s Institute for Digital Forestry. License Original 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.