A gray wolf that had lost its fear of humans and was repeatedly visiting developed areas in the park, has been put down. The gray wolf had approached visitors several times and liked to remain in the more developed areas of the park. Hazing attempts to scare off the wolf were unsuccessful. Due to the history of fearless behavior, Park Officials had to make the decision, and with the best interest of visitors and rangers in mind they decided to put the wolf down.
Park officials have tried to move animals in the park before, but these attempts usually are unsuccessful as the animal will go back to developed areas again. This wolf was believed to be between 2 and 4 years old and from Mollie's pack. From Yellowstone Insider .