In most states, the sighting of a cougar in a residential area and phone call to the game agency would nearly guarantee the cougar's death. If public safety is ever even mentioned, the lion will be killed. But surprisingly, after photos of a cougar in a housing track were reported in Colorado, the state Division of Wildlife was more interested in collaring and studying the cat than killing it. Biologists have been saying for decades that we should be tracking lions that come through towns rather than killing them. It looks like finally one state is beginning to take a scientific approach to managing mountain lions.