grizzer – May 1, 2007 12:00 AM

As spring approaches, the exhibit changes to a summer management mode. The pond has been filled; the layers of straw that keep the wolves warm in winter are removed to expose the cooler layers of soil. In an effort to help reduce the insect population, cedar chips are placed throughout the enclosure. In this week’s photo and video, you will see the wolves’ scent rolling on the new smells and marking it with a raised leg urination or RLU. The area in the photo is on top of the den site, an area the wolves often rest.