Wirri-Wirri the Koala (image) Forschungsverbund Berlin Share Print E-Mail Caption This is a Koala in Zoo Vienna. Credit Zoo Vienna, Daniel Zupanc Usage Restrictions In relation to this press release only. 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.