A rambling bear apparently looking for new wild life on a University of Colorado campus yesterday ended up cooling his heels in a tree. The young male was "pretty mellow, resting on a branch for close to two hours" near student apartments at the Boulder school, said a campus cop. Officials shot a tranquilizer dart into the animal, which tumbled from the tree onto a large mat. The bear will be taken some 50 miles away and released in the woods, a spokesman told ABC News. (More Colorado stories.)