There was a great story that appeared a number of years ago in relation to the urban wildlife of Toronto. A number of raccoons were trapped, and it was decided to relocate them many miles outside of Toronto in a more rural environment. As part of the experiment they were all fastened with radio collars for tracking. It turns out that the raccoons wanted no part of rural life, and were recorded moving steadily away from a rural setting and continuing moving until they reached an urban setting.
 In a similar story, bears that came into the townsite of Jasper were routinely tranquillized and taken many miles back into the wilderness and tagged. The bears returned and were recaptured and taken even farther away. It took them longer to get back, but back they came. Unlike raccoons and other small urban wildlife, the repeat performance by the bear, ended up in its demise. Wildlife adapts to its environment, and in the case of raccoons , there are probably more in urban areas, then rural.