Wondiwoi Tree Kangaroo (IMAGE) Stanford University Caption A 1936 illustration of a Wondiwoi Tree Kangaroo. Until this past summer, no one had reported seeing the creature since 1928. Credit Zoological Society of London Usage Restrictions Credit Zoological Society of London 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.