Lions and foxes and bears, oh Al Gore!

One of my coworkers has a theory about why there are so many foxes (and mountain lions, bears and coyotes!) in the Denver area. Something strange is going on, something beyond more people pushing into the foothills, moving into animals' natural habitats. She thinks its another sign of global warming. Wildfires and drought = less food for little critters and fewer little critters = less food for bigger animals = more animals of all kinds moving into territory they don't belong. Like people's houses.