Jack Rabbit (IMAGE) Wildlife Conservation Society Caption Jack rabbits like these have mysteriously vainished from Yellowstone, a Wildlife Conservation Society study says. Credit Joel Berger/Wildlife Conservation Society Usage Restrictions One time use for news stories related to this press release 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.