The Courier article was written for preschoolers by my standards, maybe they should add it to the list! right after songbirds and turtles...
This the second year in a row that there have been bear sightings in prescott valley, and since bear roam such a huge area I think anyone building or rebuilding should take that in consideration. I'm over 20 miles from the bear sighting (maybe less as the crow flies) and as it happens my pen is based on a chain link dog kennel staked in the ground at 8-10 points but with only a 2x4 no-climb horse fencing and some hardware cloth for a top. I have deer nearby but have never seen a bear. I do have a 6 ft block wall around the back yard though.
ETA: I think most black bear in AZ range from 75-150 lbs.