Wolves of Isle Royale (image) Michigan Technological University Share Print E-Mail Caption Two wolves remain of the old Isle Royale packs. This past fall and winter, the National Park Service brought 13 more wolves to the island. Credit Rolf Peterson/Michigan Tech Usage Restrictions please credit 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.